Examination for Japanese University Admission (EJU) â Questions and Answers
Question 1: If a turtle moves from coordinate P = (3,2) to Q = (5,6). Which vector models the turtle's motion?
- None of the above
- 2,4 (Correct answer)
- -1,5
- 8,8
Correct answer: 2,4
Explanation: <br> The turtle moves from coordinate P = (3,2) to Q = (5,6). To find the vector that models the turtle's motion, we need to find the difference between the coordinates of Q and P. The x-coordinate of Q is 5 and the x-coordinate of P is 3, so the x-component of the vector is 5 - 3 = 2. Similarly, the y-coordinate of Q is 6 and the y-coordinate of P is 2, so the y-component of the vector is 6 - 2 = 4.
Question 2: AåœãšBåœããããããåŽåè 1人ããã1æ¥ã«çç£ã§ããç±³ãšèªåè»ã®éã以äžã®è¡šã®éãã§ãããšãããããŽã£ããã»ãªã«ãŒãã®æ¯èŒçç£è²»èª¬ã«åºã¥ããå Žåãã©ã®ãããªåæ¥ã»è²¿æãè¡ãããã®ãæãåççãã | | ç±³ | èªåè» | |:---:|:---:|:---:| | Aåœ | 10åäœ | 2å° | | Båœ | 8åäœ | 4å° |
- äž¡åœãšãã«äž¡æ¹ãçç£ãã貿æã¯è¡ããªãã
- Aåœãäž¡æ¹ã®çç£ã«ç¹åããBåœã«èŒžåºããã
- Aåœãç±³ãBåœãèªåè»ãçç£ããŠè²¿æããã (Correct answer)
- Aåœãèªåè»ãBåœãç±³ãçç£ããŠè²¿æããã
Correct answer: Aåœãç±³ãBåœãèªåè»ãçç£ããŠè²¿æããã
æ¯èŒçç£è²»èª¬ã§ã¯ãå財ãçç£ããããã®æ©äŒè²»çšãããå°ããåœããã®è²¡ã®çç£ã«æ¯èŒåªäœãæã€ãšèããŸããAåœãèªåè»1å°ãçç£ããæ©äŒè²»çšã¯ç±³5åäœïŒ10/2ïŒã§ããBåœãèªåè»1å°ãçç£ããæ©äŒè²»çšã¯ç±³2åäœïŒ8/4ïŒã§ãããããã£ãŠãBåœã¯èªåè»ã®çç£ã«æ¯èŒåªäœããããŸããäžæ¹ãAåœãç±³1åäœãçç£ããæ©äŒè²»çšã¯èªåè»0.2å°ïŒ2/10ïŒã§ããBåœãç±³1åäœãçç£ããæ©äŒè²»çšã¯èªåè»0.5å°ïŒ4/8ïŒã§ãããããã£ãŠãAåœã¯ç±³ã®çç£ã«æ¯èŒåªäœããããŸãããã£ãŠãAåœãç±³ãBåœãèªåè»ã«ç¹åããŠçç£ãã貿æããããšãåæ¹ã«ãšã£ãŠåççã§ãã
Question 3: çµæžã®ã°ããŒãã«åãé²ãäžã§ãç¹å®ã®å°åå ã®åœã ãé¢çšãªã©ãæ€å»ã»åæžããçµæžçãªçµã³ã€ãã匷ããåããèŠãããããããã®å°åçãªçµæžçµ±åã®åœ¢æ ã®ãã¡ãæãçµ±åã¬ãã«ãé«ããã®ã¯ã©ããã
- é¢çšåç
- èªç±è²¿æåå®ïŒFTAïŒ
- å ±ååžå Ž
- çµæžåç (Correct answer)
Correct answer: çµæžåç
çµæžçµ±åã®ã¬ãã«ã¯äžè¬çã«ãâ èªç±è²¿æåå®ïŒFTA: åå é¢çšæ€å»ïŒââ¡é¢çšåçïŒå ±é察å€é¢çšïŒââ¢å ±ååžå ŽïŒçç£èŠçŽ ã®ç§»åã®èªç±åïŒââ£çµæžåçïŒçµæžã»éèæ¿çã®å調ã»çµ±äžïŒã®é ã«é«ããªããŸããçµæžåçã¯ã欧å·é£åïŒEUïŒã®ãŠãŒãå°å ¥ã®ããã«ãé貚統åãå«ãå ±éã®çµæžæ¿çã宿œãããããæãçµ±åã¬ãã«ãé«ã圢æ ã§ãã
Question 4: If sin Ξ = 3/5 and 0 < Ξ < Ï/2, what is tan Ξ?
- 5/3
- 3/4 (Correct answer)
- 4/3
- 3/5
Correct answer: 3/4
In a right triangle, if sin Ξ = 3/5, then the opposite side is 3 and hypotenuse is 5. By the Pythagorean theorem, adjacent = 4. So tan Ξ = opposite/adjacent = 3/4.
Question 5: The substances listed below are believed to have been in existence or formed during the process of chemical evolution that preceded the emergence of life. From the choices below, choose the answer that correctly arranges a - c in the order in which they appeared. <br><br> (a) Proteins, nucleic acids, etc. <br> (b) Amino acids, sugars, phospholipids, etc. <br> (c) Hydrogen sulfide, hydrogen, ammonia, methane, etc.
- c â b â a (Correct answer)
- c â a â b
- b â a â c
- a â b â c
- b â c â a
- a â c â b
Correct answer: c â b â a
Explanation: <br> (c) Hydrogen sulfide, hydrogen, ammonia, methane, etc.: These are simple inorganic molecules that were likely present in the early Earth's atmosphere or hydrothermal vents. <br> (b) Amino acids, sugars, phospholipids, etc.: These are organic molecules that could have formed through prebiotic chemistry, such as the Miller-Urey experiment, which simulated conditions believed to be present on early Earth. <br> (a) Proteins, nucleic acids, etc.: These are complex biomolecules that are essential for life and likely formed later, possibly through the polymerization of simpler organic molecules. <br><br> This sequence reflects a plausible progression from simple inorganic molecules to more complex organic molecules during the early stages of chemical evolution on Earth.
Question 6: Among the gases generated by means of the following procedures (a)-(d), two exhibit reducing ability. Choose the correct combination. <br><br> (a) Aqueous sodium hydroxide (NaOH) is added to aluminum (Al). <br> (b) Concentrated sulfuric acid (Hâ¥SO4) is added to sodium chloride (NaCl) and the mixture is heated. <br> (c) Concentrated hydrochloric acid (HCI) is added to manganese(IV) oxide and the mixture is heated. <br> (d) Dilute sulfuric acid (H2SO4) is added to iron(II) sulfide (FeS).
- b, d
- a, b
- b, c
- a, c
- a, d (Correct answer)
- c, d
Correct answer: a, d
Explanation: <br> (a) Aqueous sodium hydroxide (NaOH) is added to aluminum (Al). <br> - This reaction produces hydrogen gas â<br><br> (d) Dilute sulfuric acid is added to iron (II) sulfide (FeS). <br> - This reaction produces hydrogen sulfide gas
Question 7: What type of wave is sound?
- Longitudinal wave (Correct answer)
- Electromagnetic wave
- Standing wave
- Transverse wave
Correct answer: Longitudinal wave
Sound is a longitudinal wave because the particles in the medium vibrate parallel to the direction of wave propagation.
Question 8: A bag contains 5 red balls and 3 white balls. If two balls are drawn from the bag at the same time, what is the probability that both balls are red?
- 25/64
- 5/8
- 3/14
- 5/14 (Correct answer)
Correct answer: 5/14
The total number of ways to choose 2 balls from 8 is given by the combination formula âCâ = (8 * 7) / (2 * 1) = 28. The number of ways to choose 2 red balls from 5 is â Câ = (5 * 4) / (2 * 1) = 10. Therefore, the probability is the ratio of favorable outcomes to total outcomes, which is 10/28, simplifying to 5/14.
Question 9: ååçªå·17ã®å¡©çŽ ïŒClïŒååã®åºåºç¶æ ã«ãããé»åé 眮ãšããŠãæãé©åãªãã®ã¯ã©ããã
- K(2)L(7)M(8)
- K(2)L(8)M(8)
- K(2)L(8)M(6)
- K(2)L(8)M(7) (Correct answer)
Correct answer: K(2)L(8)M(7)
å¡©çŽ ã®ååçªå·ã¯17ã§ãããããã¯ååæ žã«17åã®éœåãšãäžæ§ååã«17åã®é»åãããããšãæå³ããŸããé»åã¯ãšãã«ã®ãŒæºäœã®äœãé»åæ®»ããé ã«æºããããŠãããŸããKæ®»ã«ã¯æå€§2åãLæ®»ã«ã¯æå€§8åã®é»åãå容ãããŸãããããã£ãŠãæåã®2ã€ã®æ®»ã«åèš10åã®é»åãå ¥ã£ãåŸãæ®ãã®7åã®é»åãMæ®»ã«å ¥ããŸãããã£ãŠãå¡©çŽ ã®é»åé 眮ã¯K(2)L(8)M(7)ãšãªããŸãã
Question 10: A function f(x) = x² - 4x + 7. What is the minimum value of f(x)?
- 7
- 1
- 3 (Correct answer)
- 4
Correct answer: 3
Completing the square: f(x) = (x-2)² + 3. The minimum value is 3, occurring at x = 2.
Question 11: çç©ã®é²åã®èšŒæ ãšãããçžååšå®ã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
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- é³¥ã®ç¿Œãšæè«ã®ç¿ ã®ããã«ãèµ·æºã¯ç°ãªããåããããªæ©èœãæã€åšå®ã
- ããã®è ãšã³ãŠã¢ãªã®ç¿Œã®ããã«ãèµ·æºã¯åãã ãçŸåšã®åœ¢ãæ©èœãç°ãªãåšå®ã (Correct answer)
Correct answer: ããã®è ãšã³ãŠã¢ãªã®ç¿Œã®ããã«ãèµ·æºã¯åãã ãçŸåšã®åœ¢ãæ©èœãç°ãªãåšå®ã
çžååšå®ãšã¯ãå ±éã®ç¥å ããé²åããçç©éã§ãåºæ¬çãªæ§é ãçºçã®èµ·æºãåãã§ããããçŸåšã®æ©èœã圢æ ãç°ãªã£ãŠããåšå®ã®ããšã§ãããããã®è ãã³ãŠã¢ãªã®ç¿Œãã¯ãžã©ã®ãã¬ãªã©ã¯ãéªšæ Œã®åºæ¬æ§é ãå ±éããŠããããã¹ãŠçžååšå®ã®äŸã§ããã
Question 12: 以äžã®æç« ãèªãã§ãåŸã®åãã«çããªããã ãã¬ã¯ãŒã¯ã¯ãé倿éããªããªãããšã§åŸæ¥å¡ã®èªç±ãªæéãå¢ããã¯ãŒã¯ã©ã€ããã©ã³ã¹ã®åäžã«ç¹ãããšããå©ç¹ãããããŸããäŒæ¥ã«ãšã£ãŠãããªãã£ã¹ã®å ç±è²»ã亀éè²»ã®æ¯çµŠãåæžã§ããã¡ãªããã¯å€§ãããããããäžæ¹ã§èª²é¡ãååšããããã®äžã€ããã³ãã¥ãã±ãŒã·ã§ã³ã®è³ªã®å€åã ããªãã£ã¹ã«ããã°å¯èœã ã£ããååãšã®äœæ°ãªãäŒè©±ãéè«ããçãŸããã¢ã€ãã¢ãããŒã ã®äžäœæãããã¬ã¯ãŒã¯ã§ã¯å€±ããããããæå³çãªã³ãã¥ãã±ãŒã·ã§ã³ã®æ©äŒãèšãã工倫ãå¿ èŠãšãªãã ãã®æç« ã§ææãããŠããããã¬ã¯ãŒã¯ã®åé¡ç¹ã¯æ¬¡ã®ãã¡ã©ãã§ããã
- åŸæ¥å¡ã®éå€è²»çšãå¢å ããããšã
- ååãšã®å¶çºçãªã³ãã¥ãã±ãŒã·ã§ã³ãæžãããšã (Correct answer)
- ããåºããªãã£ã¹ã¹ããŒã¹ãå¿ èŠã«ãªãããšã
- äŒç€Ÿã®éèŠãªããŒã¿ãžã®ã¢ã¯ã»ã¹ãé£ãããªãããšã
Correct answer: ååãšã®å¶çºçãªã³ãã¥ãã±ãŒã·ã§ã³ãæžãããšã
The passage explicitly states that a problem ('課é¡') with telework is the change in communication quality. It specifies that the casual conversations and chats with colleagues that happen in an office, which can lead to ideas and team unity, are easily lost ("ååãšã®äœæ°ãªãäŒè©±ãéè«ããçãŸããã¢ã€ãã¢ãããŒã ã®äžäœæãããã¬ã¯ãŒã¯ã§ã¯å€±ããããã"). This directly corresponds to the idea of a reduction in spontaneous communication.
Question 13: ïŒé³å£°ïŒ ç·ã®åŠçãšå¥³ã®åŠçã話ããŠããŸãã 女ïŒå±±ç°ãããæ¥é±ã®äœè€å çã®ææ¥ãã¬ããŒãã®ç· ãåãã ãããããçµãã£ãïŒ ç·ïŒãããããŸã ã ããããŒããæ±ºãŸããªããŠãæŽå²ã®äººç©ã«ã€ããŠæžãããšæã£ãŠããã ãã©ãå€ãããŠéžã¹ãªããã ã 女ïŒãããªãã ãç§ã¯ãå é±å çã玹ä»ããŠãããæ¬ãèªãã§ãé¢çœãã£ãããããã®æ¬ã®å 容ã«ã€ããŠæžãããšã«ãããã ç·ïŒããããã®æ¬ããåãèªãã§ã¿ããã©ãã¡ãã£ãšé£ãããŠããã£ã±ãã人ç©ã®ã»ããæžããããããªã 女ïŒãããã峿žé€šã§äžç·ã«è³æãæ¢ããªãïŒç§ããŸã æžãå§ããŠãªããããæäŒããã ç·ïŒæ¬åœïŒå©ãããïŒ ïŒè³ªåïŒ ç·ã®åŠçãå°ã£ãŠããããšã¯äœã§ããã
- å çã玹ä»ããæ¬ãé£ããããšã
- 峿žé€šã§è³æãèŠã€ãããªãããšã
- ã¬ããŒãã®æžãæ¹ãåãããªãããšã
- ã¬ããŒãã®ããŒããæ±ºãŸããªãããšã (Correct answer)
Correct answer: ã¬ããŒãã®ããŒããæ±ºãŸããªãããšã
ç·ã®åŠçã¯ããããŒããæ±ºãŸããªããŠããšæç¢ºã«è¿°ã¹ãŠããŸããæŽå²ã®äººç©ã«ã€ããŠæžããšãã倧æ ã¯ãããŸãããå ·äœçã«èª°ã«ããããéžã¹ãã«å°ã£ãŠããŸããããã圌ã®çŸåšã®äž»ãªåé¡ã§ãã
Question 14: A capacitor stores energy in the form of:
- A magnetic field
- An electric field between its plates (Correct answer)
- Kinetic energy of electrons
- Chemical potential energy
Correct answer: An electric field between its plates
A capacitor stores energy as an electric field established between its charged plates.
Question 15: ïŒé³å£°ïŒ ã©ãžãªã®å€©æ°äºå ±ã§ãã ã颿±å°æ¹ã®é±æ«ã®å€©æ°ããäŒãããŸããåææ¥ã¯ãååäžã¯ããæŽããŸãããååŸã«ãªããšé²ãåºããããããªãã§ãããã倿¹ããã¯æã«ãããã«ããéšãé·éšã«æ³šæãå¿ èŠã§ãããåºããã®éã¯ãæãç³ã¿åããããšå®å¿ã§ããæ¥ææ¥ã¯ãæãããã£ãããšæŽããŠã絶奜ã®è¡æ¥œæ¥åãšãªãããã§ããæ°æž©ãåææ¥ããäžãããå€ã®ãããªæãã«ãªãã§ããããã ïŒè³ªåïŒ ãã®å€©æ°äºå ±ã«ãããšãæ£ãããã®ã¯ã©ãã§ããã
- æ¥ææ¥ã¯åææ¥ããæ¶Œãããªãã
- åææ¥ã«å€åºãããªãåããã£ãã»ããããã (Correct answer)
- åææ¥ã®ååŸã¯æŽå€©ãç¶ãã
- 鱿«ã¯äž¡æ¥ãšãéšãéãå¯èœæ§ãããã
Correct answer: åææ¥ã«å€åºãããªãåããã£ãã»ããããã
ã¢ããŠã³ãµãŒã¯åææ¥ã®å€©æ°ã«ã€ããŠãã倿¹ããã¯æã«ãããã«ããéšãé·éšã«æ³šæãå¿ èŠããšèšããããåºããã®éã¯ãæãç³ã¿åããããšå®å¿ã§ãããšä»ãå ããŠããŸãããããã£ãŠãåææ¥ã«åãæã£ãŠããããšãæšå¥šããŠãããã®éžæè¢ãæ£ããã§ãã
Question 16: 次ã®ç©è³ªã®ãã¡ãååéã«æ°ŽçŽ çµåã圢æããã®ã¯ã©ããã
- ããåæ°ŽçŽ (HF) (Correct answer)
- ã¡ã¿ã³ (CHâ)
- å¡©åæ°ŽçŽ (HCl)
- ç¡«åæ°ŽçŽ (HâS)
Correct answer: ããåæ°ŽçŽ (HF)
æ°ŽçŽ çµåã¯ã黿°é°æ§åºŠã®éåžžã«å€§ããååïŒããçŽ Fãé žçŽ OãçªçŽ NïŒã«çŽæ¥çµåããæ°ŽçŽ ååããè¿ãã«ããå¥ã®ååã®FãOãNååãšã®éã«çãã匷ãååéåã§ããéžæè¢ã®äžã§ãããåæ°ŽçŽ ïŒHFïŒã¯æ°ŽçŽ ååã黿°é°æ§åºŠã®æã倧ããããçŽ ååã«çµåããŠãããããååéã§åŒ·ãæ°ŽçŽ çµåã圢æããŸããããã«ãããHFã¯ååéãè¿ãä»ã®ããã²ã³åæ°ŽçŽ ïŒHClãªã©ïŒã«æ¯ã¹ãŠç°åžžã«é«ã沞ç¹ãæã¡ãŸãã
Question 17: Solve the inequality x² - 3x - 10 < 0. Which interval represents all solutions?
- -5 < x < 2
- x < -5 or x > 2
- x < -2 or x > 5
- -2 < x < 5 (Correct answer)
Correct answer: -2 < x < 5
Factor: (x - 5)(x + 2) < 0. The parabola opens upward, so the expression is negative between the roots: -2 < x < 5.
Question 18: The Tokyo Metropolitan Area (Greater Tokyo) is notable globally for being:
- The oldest continuously inhabited major city in East Asia
- The world's most populous metropolitan area with over 37 million people (Correct answer)
- Japan's fastest-growing urban area in terms of population since 2000
- A city spanning portions of three different Japanese islands
Correct answer: The world's most populous metropolitan area with over 37 million people
Greater Tokyo consistently ranks as the world's most populous metropolitan area, housing over 37 million people in its urban agglomeration.
Question 19: Which of the following statements is true about the relationship between the graph of a function y = f(x) and its inverse function y = fâ»Â¹(x)?
- They are reflections of each other across the line y = x. (Correct answer)
- They are reflections of each other across the origin.
- They are reflections of each other across the x-axis.
- They are reflections of each other across the y-axis.
Correct answer: They are reflections of each other across the line y = x.
The graph of a function and its inverse are always symmetric with respect to the line y = x. This is because if a point (a, b) is on the graph of f(x), then the point (b, a) must be on the graph of fâ»Â¹(x). The line y = x is the perpendicular bisector of the segment connecting these two points.
Question 20: What is the SI unit of electric charge?
- Ohm (Ω)
- Ampere (A)
- Volt (V)
- Coulomb (C) (Correct answer)
Correct answer: Coulomb (C)
The Coulomb (C) is the SI unit of electric charge, where one Coulomb equals the charge carried by approximately 6.24 Ã 10^18 electrons.
Question 21: ïŒé³å£°ïŒ ç·ã®äººãšå¥³ã®äººãã¢ã«ãã€ãã«ã€ããŠè©±ããŠããŸãã 女ïŒå èŒ©ãæ°ããã¢ã«ãã€ãæ¢ããŠããã§ããã ç·ïŒãããä»ãã£ãŠãã³ã³ããã®ãã€ããæçµŠã¯ãããã ãã©ãå€ã®ã·ãããå€ããŠãæè¿ã¡ãã£ãšãã€ããŠãã 女ïŒãããªãã§ãããããããæŒéã®ä»äºãããã§ããã ç·ïŒããã倧åŠããè¿ããšããã§ãäœãããã®ãªãããªã£ãŠæã£ãŠãææ¥ã®åéã«åãããšäžçªãããã ãã©ã 女ïŒãããªãã倧åŠã®åã®ã«ãã§ã¯ã©ãã§ãããæè¿ãåéã®è²ŒãçŽãåºãŠãŸãããã倧åŠããããã ããæŒéã ãåããã£ãŠæžããŠãããŸããã ç·ïŒãžããæ¬åœïŒããã¯ããããææ¥ãæ©éèŠãŠã¿ããã ïŒè³ªåïŒ ç·ã®äººãæ°ããã¢ã«ãã€ãã«æ±ããæ¡ä»¶ã¯äœã§ããã
- 倧åŠã®è¿ãã§ãæŒéã«åããããšã (Correct answer)
- ã³ã³ãããšã³ã¹ã¹ãã¢ã§ã®ä»äºã§ããããšã
- æçµŠãé«ãããšã
- å€ã®æé垯ã«åããããšã
Correct answer: 倧åŠã®è¿ãã§ãæŒéã«åããããšã
ç·ã®äººã¯çŸåšã®ã¢ã«ãã€ãããå€ã®ã·ãããå€ããŠãã€ãããšèšããæ°ããã¢ã«ãã€ãã®æ¡ä»¶ãšããŠã倧åŠããè¿ããšãããã§ãææ¥ã®åéã«åãããã€ãŸãæŒéã«åããããšãæãã§ããŸãããã®äž¡æ¹ã®æ¡ä»¶ãæºãããŠããã®ããã®éžæè¢ã§ãã
Question 22: The Seto Inland Sea (Seto Naikai) is an enclosed body of water located between which Japanese islands?
- Shikoku and Hokkaido
- Honshu and Hokkaido
- Kyushu and the Ryukyu Islands
- Honshu, Shikoku, and Kyushu (Correct answer)
Correct answer: Honshu, Shikoku, and Kyushu
The Seto Inland Sea is enclosed by Honshu to the north, Shikoku to the south, and Kyushu to the west, forming a sheltered maritime highway historically important for trade.
Question 23: What does the ãã° conditional form in Japanese express?
- A reason or cause
- A completed past action
- A simultaneous action
- A hypothetical or conditional relationship ('if ... then ...') (Correct answer)
Correct answer: A hypothetical or conditional relationship ('if ... then ...')
The ãã° form expresses a conditional or hypothetical relationship, meaning 'if [condition], then [result].'
Question 24: Japan's population distribution is best described as:
- Mostly located in the northern island of Hokkaido
- Concentrated mainly in mountainous interior regions
- Evenly spread across all four main islands
- Heavily concentrated in coastal lowlands, plains, and river valleys (Correct answer)
Correct answer: Heavily concentrated in coastal lowlands, plains, and river valleys
Because mountains cover about 73% of Japan's land area, the population is crowded into coastal lowlands and plains, creating some of the world's highest urban densities.
Question 25: ç¬¬äºæ¬¡äžç倧æŠåŸã®åœéçµæžäœå¶ãæ¯ãããã¬ãã³ã»ãŠããºäœå¶ã®äžã§èšç«ãããåœéæ©é¢ã«é¢ããèšè¿°ãšããŠãåœéé貚åºéïŒIMFïŒã®äž»ãªåœ¹å²ãæããã説æããŠãããã®ã¯ã©ããã
- å çåœãäžæçãªåœé忝ã®å±æ©ã«é¥ã£ãéã«ãçæçãªè³éãèè³ããã (Correct answer)
- éçºéäžåœã®é·æçãªéçºãããžã§ã¯ãïŒã€ã³ãã©æŽåãªã©ïŒã«å¯ŸããŠèè³ãè¡ãã
- å é²åœéã®çµæžæ¿çã«ã€ããŠåè°ããäžççµæžã®å®å®çæé·ãç®æãçµæžååæ©é¢ã§ããã
- èªç±ã§å€è§çãªè²¿æãä¿é²ãããããé¢çšã®åŒãäžãã貿æéå£ã®æ€å»ã«é¢ãã亀æžã®å ŽãæäŸããã
Correct answer: å çåœãäžæçãªåœé忝ã®å±æ©ã«é¥ã£ãéã«ãçæçãªè³éãèè³ããã
åœéé貚åºéïŒIMFïŒã®äž»ãªåœ¹å²ã¯ãçºæ¿çžå Žã®å®å®ãç®çãšããåœé忝ãèµ€åã«ãªããªã©äžæçãªéè屿©ã«é¥ã£ãå çåœã«å¯ŸããŠçæçãªè³éãèè³ããããšã§ããéžæè¢1ã¯äžçéè¡ïŒIBRDïŒã3ã¯GATTïŒåŸã®WTOïŒã4ã¯çµæžååéçºæ©æ§ïŒOECDïŒã®åœ¹å²ã«è¿ãã§ãã
Question 26: ããçç©ã®ç¹å®ã®åœ¢è³ªã決å®ããéºäŒåã®çµã¿åãããäœãšåŒã¶ãã
- 衚çŸå
- ã²ãã
- 察ç«éºäŒå
- éºäŒåå (Correct answer)
Correct answer: éºäŒåå
éºäŒååïŒgenotypeïŒã¯ãçç©ãæã€ç¹å®ã®åœ¢è³ªã«é¢ããéºäŒåã®æ§æãã€ãŸã察ç«éºäŒåã®çµã¿åãããæããäžæ¹ã衚çŸåïŒphenotypeïŒã¯ããã®éºäŒååãšç°å¢èŠå ã«ãã£ãŠå®éã«çŸããå€èŠäžã®ç¹åŸŽãæ§è³ªã®ããšã§ããã
Question 27: The following reaction is in an equilibrium state. Among the following statements about this reaction, two are correct. Choose the correct combination. <br><br> (a) If the temperature of this reaction is raised, the equilibrium constant will become smaller. <br> (b) If a catalyst is added, the equilibrium constant will become larger since the rate of reaction increases. <br> (c) Though the path of the reaction will not change by adding a catalyst, the activation energy of the reaction will become smaller. <br> (d) It is impossible to derive an equation explaining the relation between the rate of reaction and the concentration of reactants directly from the chemical equation.
- b, c
- a, c
- c, d
- a, d (Correct answer)
- b, d
- a, b
Correct answer: a, d
Explanation: <br> (a) If the temperature of this reaction is raised, the equilibrium constant will become smaller. <br> - This is correct for exothermic reactions. Increasing temperature shifts the equilibrium to favor the reactants, decreasing the equilibrium constant. <br><br> (d) It is impossible to derive an equation explaining the relation between the rate of reaction and the concentration of reactants directly from the chemical equation. <br> - This is correct. The rate law is determined experimentally and cannot be derived directly from the stoichiometric coefficients of the chemical equation.
Question 28: 以äžã®ååç©ã®ãã¡ãäž»ã«ã€ãªã³çµåã«ãã£ãŠåœ¢æãããŠãããã®ã¯ã©ããã
- äºé žåççŽ (COâ)
- å¡©åã«ãªãŠã (KCl) (Correct answer)
- æ°Ž (HâO)
- ã¡ã¿ã³ (CHâ)
Correct answer: å¡©åã«ãªãŠã (KCl)
ã€ãªã³çµåã¯ãäž»ã«éå±å çŽ ãšééå±å çŽ ã®éã§åœ¢æãããŸãããã®çµåã§ã¯ãéå±ååãé»åã倱ã£ãŠéœã€ãªã³ã«ãªããééå±ååãé»åãåãåã£ãŠé°ã€ãªã³ã«ãªããŸãããã®éœã€ãªã³ãšé°ã€ãªã³ã®éã®é黿°çãªåŒåã«ãã£ãŠçµåã圢æãããŸããéžæè¢ã®äžã§ãå¡©åã«ãªãŠã (KCl)ã¯éå±ã§ããã«ãªãŠã (K)ãšééå±ã§ããå¡©çŽ (Cl)ããæ§æãããŠãããããã€ãªã³çµåæ§ã®ååç©ã§ããä»ã®éžæè¢ã¯ãã¹ãŠééå±å çŽ å士ã®å ±æçµåã«ãã£ãŠåœ¢æãããŠããŸãã
Question 29: On the EJU Japanese test, what is the approximate recommended length for the äœæ essay?
- 400â500 characters
- 50â100 characters
- 800â1000 characters (Correct answer)
- 200â300 characters
Correct answer: 800â1000 characters
The EJU äœæ section typically requires essays of approximately 800 to 1000 Japanese characters to adequately demonstrate writing ability.
Question 30: The Tokaido Megalopolis refers to the densely urbanized industrial corridor stretching between:
- Sapporo and Tokyo along the Pacific coast
- Fukuoka and Hiroshima across northern Kyushu
- Nagoya and Sapporo through central Honshu
- Tokyo through Nagoya to Osaka and Kobe (Correct answer)
Correct answer: Tokyo through Nagoya to Osaka and Kobe
The Tokaido Megalopolis follows the old Tokaido highway from Tokyo through Nagoya to Osaka-Kobe, forming one of the world's most densely populated and industrialized urban corridors.
Question 31: Which particle correctly marks the indirect object (the recipient) in a Japanese sentence?
- ã
- ã§
- ã
- ã« (Correct answer)
Correct answer: ã«
The particle ã« marks the indirect object (recipient) in Japanese, as in åéã«ãã¬ãŒã³ããããã ('I gave a present to my friend').
Question 32: If logâ(x) = 3 and logâ(y) = 5, what is logâ(x²y)?
- 13
- 11 (Correct answer)
- 16
- 8
Correct answer: 11
logâ(x²y) = 2·logâ(x) + logâ(y) = 2(3) + 5 = 6 + 5 = 11.
Question 33: Let A and B be two sets such that n(A) = 15, n(B) = 20, and n(A ⩠B) = 5. What is the value of n(A ⪠B)?
- 25
- 35
- 30 (Correct answer)
- 40
Correct answer: 30
The number of elements in the union of two sets is given by the Principle of Inclusion-Exclusion: n(A ⪠B) = n(A) + n(B) - n(A ⩠B). Substituting the given values: n(A ⪠B) = 15 + 20 - 5 = 30.
Question 34: What does the expression ããŠããŸã convey in Japanese?
- An ongoing action
- A conditional statement
- Completion of an action, often with regret or an unintended result (Correct answer)
- A polite request
Correct answer: Completion of an action, often with regret or an unintended result
ããŠããŸã indicates that an action is fully completed, often carrying a nuance of regret or an unintended consequence.
Question 35: æ¥æ¬ã®èªåè»ã¡ãŒã«ãŒãç±³åœã«èªåè»ã1äžãã«ã§èŒžåºãã代éããã«ã§åãåã£ãããã®ååŒã¯ãæ¥æ¬ã®åœéåæ¯çµ±èšã«ãããŠã©ã®ããã«èšé²ããããã
- çµåžžåæ¯ã®äžã®ã貿æåæ¯ãã®é»åïŒè²žæ¹ïŒãšããŠèšäžãããã (Correct answer)
- çµåžžåæ¯ã®äžã®ãç¬¬äžæ¬¡æåŸåæ¯ãã®é»åïŒè²žæ¹ïŒãšããŠèšäžãããã
- éè忝ã®è³ç£ã®æžå°ãšããŠèšäžãããã
- è³æ¬ç§»è»¢ç忝ã®èµ€åïŒåæ¹ïŒãšããŠèšäžãããã
Correct answer: çµåžžåæ¯ã®äžã®ã貿æåæ¯ãã®é»åïŒè²žæ¹ïŒãšããŠèšäžãããã
åœéåæ¯çµ±èšã«ãããŠã財ïŒã¢ãïŒã®èŒžåºã¯ãçµåžžåæ¯ããæ§æããã貿æã»ãµãŒãã¹åæ¯ãã®äžã®ã貿æåæ¯ãã«åé¡ãããŸãã茞åºã¯æµ·å€ãã代éãåãåãååŒã§ãããããæ¥æ¬ã®è³ç£ãå¢å ããèŠå ãšãªããé»åïŒè²žæ¹é ç®ã»ãã©ã¹ïŒãšããŠèšäžãããŸãã
Question 36: In a DC circuit, what happens to the total current when an additional resistor is added in parallel?
- Total current remains unchanged
- Total current increases because the equivalent resistance decreases (Correct answer)
- Total current decreases because more resistance is added
- Total current becomes zero
Correct answer: Total current increases because the equivalent resistance decreases
Adding a parallel branch lowers total resistance, so by I = V/R, total current from the source increases.
Question 37: What is the unit of frequency in the SI system?
- Newton (N)
- Hertz (Hz) (Correct answer)
- Pascal (Pa)
- Joule (J)
Correct answer: Hertz (Hz)
Frequency is measured in Hertz (Hz), where 1 Hz equals one cycle per second.
Question 38: The water of 100 g at 10 °C is placed in a container that has a heat capacity of 150 J/K and is at temperature t. After sufficient time elapses, the container's temperature changes to 0.0 °C. Also, a portion of the water in the container turns into ice, with the container now holding ice of 5.0 g at 0.0 °C and water of 95 g at 0.0 °C. The specific heat of water is 4.2 J/(g ⥠K), and the heat of fusion of ice is 330 J/g. Assume that there is no exchange of heat with the environment. <br><br> What is t (in °C)?
- -43
- -4.0
- -39 (Correct answer)
- -54
- -17
- -21
Correct answer: -39
Explanation: <br> Given: <br> *Water: 100 g at 10°C <br> *Container heat capacity: 150 J/K <br> *Ice formed: 5 g <br> *Specific heat of water: 4.2 J/(g·K) <br> *Heat of fusion of ice: 330 J/g <br><br> Steps: <br> 1. Heat lost by water cooling to 0°C: 100 à 4.2 à 10 = 4200J <br> 2. Heat to freeze 5 g of water: 5 à 330 = 1650J <br> 3. Total heat lost: 4200 + 1650 = 5850J <br> 4. Heat gained by container: 150 à (0 â t) = â150t <br> 5. Solve for ð¡: <br> â150t = 5850 <br> t = â39
Question 39: A circle has center (2, -3) and passes through the point (5, 1). What is the radius?
- 5 (Correct answer)
- 7
- â5
- â7
Correct answer: 5
r = â((5-2)² + (1-(-3))²) = â(9 + 16) = â25 = 5.
Question 40: è¡è°é¢ã§å é£äžä¿¡ä»»æ±ºè°æ¡ã坿±ºãããå Žåãå é£ããšãã¹ã察å¿ãšããŠãæ²æ³äžå®ããããŠãããã®ã¯æ¬¡ã®ãã¡ã©ããã
- åœæ°æç¥šã宿œããŠãå é£ã®ä¿¡ä»»ãåããªããã°ãªããªãã
- çŽã¡ã«åè°é¢ã®ä¿¡ä»»ãåããªããã°ãªããªãã
- æé«è£å€æã«æ±ºè°ã®ç¡å¹ã蚎ããªããã°ãªããªãã
- 10æ¥ä»¥å ã«è¡è°é¢ãè§£æ£ããããç·èŸè·ããªããã°ãªããªãã (Correct answer)
Correct answer: 10æ¥ä»¥å ã«è¡è°é¢ãè§£æ£ããããç·èŸè·ããªããã°ãªããªãã
æ¥æ¬åœæ²æ³ç¬¬69æ¡ã¯ãè¡è°é¢ã§äžä¿¡ä»»ã®æ±ºè°æ¡ã坿±ºãããšããå é£ã¯10æ¥ä»¥å ã«è¡è°é¢ãè§£æ£ããªãéããç·èŸè·ããªããã°ãªããªããšå®ããŠããŸããããã¯è°é¢å é£å¶ã®éèŠãªååã§ãã
Question 41: A 2 kg object, initially at rest on a frictionless horizontal surface, is subjected to a constant horizontal force of 10 N. What is the kinetic energy of the object after it has been displaced by 4 m?
- 10 J
- 80 J
- 20 J
- 40 J (Correct answer)
Correct answer: 40 J
According to the work-energy theorem, the net work done on an object is equal to the change in its kinetic energy (W_net = ÎKE). The work done (W) by the constant force (F) over a displacement (d) is calculated as W = F Ã d. Here, W = 10 N Ã 4 m = 40 J. Since the object starts from rest, its initial kinetic energy is zero. Therefore, the final kinetic energy is equal to the work done, which is 40 J.
Question 42: 以äžã®æç« ãèªãã§ãåŸã®åãã«çããªããã è¿å¹Žãæ¥æ¬ã®éœåžéšã§ã¯ãäœæ°å士ã®äº€æµãç®çãšãããã³ãã¥ããã£ã¹ããŒã¹ããå¢ããŠããããã³ã·ã§ã³ã®å ±çšéšåããå°åã®ç©ºãå®¶ãæ¹è£ ããŠäœãããããšãå€ããããããã¹ããŒã¹ã§ã¯ãåã©ãããé«éœ¢è ãŸã§ãæ§ã ãªäžä»£ã®äººã ãéãŸããã€ãã³ããè¶£å³ã®æŽ»åãéããŠèªç¶ãªäº€æµãçãŸãããèæ¯ã«ã¯ãæ žå®¶æåãéœåžéšãžã®äººå£éäžã«ãããå°å瀟äŒã§ã®äººéé¢ä¿ãåžèã«ãªã£ãããšããããã³ãã¥ããã£ã¹ããŒã¹ã¯ãããããçŸä»£ç€ŸäŒã®åé¡ã«å¯Ÿããäžã€ã®è§£æ±ºçãšããŠæåŸ ãããŠããã ãã®æç« ã«ãããšãã³ãã¥ããã£ã¹ããŒã¹ãå¢ããŠããäž»ãªçç±ã¯äœã§ããã
- åã©ããã¡ãå®å šã«éã¹ãå ŽæãæäŸããããã
- å°æ¹èªæ²»äœãäŒè°ãéãå Žæã確ä¿ããããã
- å°åã®ç©ºãå®¶åé¡ã解決ããããã
- æ§ã ãªäžä»£ã®äœæ°éã®äº€æµãä¿ãããã (Correct answer)
Correct answer: æ§ã ãªäžä»£ã®äœæ°éã®äº€æµãä¿ãããã
The text explicitly states that community spaces are created for the purpose of interaction among residents ("äœæ°å士ã®äº€æµãç®çãšãã"). It also mentions that people of various generations gather there, and that these spaces are a solution to the problem of weakening relationships in the community. Therefore, promoting interaction among different generations of residents is the main reason.
Question 43: Which of the following is a common structural element expected in an EJU Japanese argumentative essay?
- Introduction stating a position, supporting reasons, and a conclusion (Correct answer)
- A narrative story about personal experience only
- A poem summarizing the topic
- A list of vocabulary words
Correct answer: Introduction stating a position, supporting reasons, and a conclusion
EJU argumentative essays follow a standard academic structure: state your position, provide supporting reasons, and conclude with a summary.
Question 44: Someone wants to know the inclination angle of a street. He notices that the bricks in a fence are horizontal with respect to the street and that the horizontal distance from a point is 35 cm. From there, downward, the brick measures 6 cm of vertical distance toward the street. What is the inclination angle?
- 10°19Ž20"
- 9°43ÂŽ39.28â (Correct answer)
- 12° 13â12â
- 80°16â20â
Correct answer: 9°43ÂŽ39.28â
Explanation: <br> The correct answer of 9°43ÂŽ39.28â can be explained by using the concept of trigonometry. The problem provides the horizontal distance (35 cm) and the vertical distance (6 cm) of the brick from a point. By using the tangent function, we can calculate the angle of inclination. The tangent of an angle is equal to the ratio of the opposite side (vertical distance) to the adjacent side (horizontal distance). In this case, the tangent of the angle is 6 cm / 35 cm. By taking the inverse tangent (arctan) of this ratio, we can find the angle of inclination, which is approximately 9°43ÂŽ39.28â.
Question 45: ååçç©åŠã®äžå¿åçã§ããã»ã³ãã©ã«ãã°ãã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- éºäŒæ å ±ã¯ãDNAãRNAãã¿ã³ãã¯è³ªã®éãåæ¹åã«æµããã
- éºäŒæ å ±ã¯ãã¿ã³ãã¯è³ªããRNAãçµãŠDNAãžãšäžæ¹åã«æµããã
- éºäŒæ å ±ã¯ãDNAããRNAãçµãŠã¿ã³ãã¯è³ªãžãšäžæ¹åã«æµããã (Correct answer)
- éºäŒæ å ±ã¯ãRNAããDNAãçµãŠã¿ã³ãã¯è³ªãžãšäžæ¹åã«æµããã
Correct answer: éºäŒæ å ±ã¯ãDNAããRNAãçµãŠã¿ã³ãã¯è³ªãžãšäžæ¹åã«æµããã
ã»ã³ãã©ã«ãã°ãã¯ãéºäŒæ å ±ããDNA â RNA â ã¿ã³ãã¯è³ªããšããäžæ¹åã®æµãã§äŒéããããšãããååçç©åŠã®åºæ¬ååã§ãããDNAã®æ å ±ãRNAã«åãåãããéçšãã転åããRNAã®æ å ±ã«åºã¥ããŠã¿ã³ãã¯è³ªãåæãããéçšãã翻蚳ããšããã
Question 46: æ¥æ¬ã®åœäŒã¯äºé¢å¶ããšã£ãŠããŸãããã®äºã€ã®è°é¢ã®æ£ããçµã¿åããã¯ã©ããã
- è¡è°é¢ãšåè°é¢ (Correct answer)
- åœæ°è°äŒãšå èé¢
- äžé¢ãšäžé¢
- 貎æé¢ãšè¡è°é¢
Correct answer: è¡è°é¢ãšåè°é¢
æ¥æ¬ã®åœäŒã¯ãæ¥æ¬åœæ²æ³ç¬¬42æ¡ã«åºã¥ããè¡è°é¢ãšåè°é¢ã®äž¡è°é¢ã§æ§æãããäºé¢å¶ïŒäž¡é¢å¶ïŒãæ¡çšããŠããŸããã貎æé¢ãã¯æŠåã®åžåœè°äŒã®äžã€ã§ããã
Question 47: The Kuroshio Current is significant for Japan's climate because it:
- Transports warm water northward along Japan's Pacific coast (Correct answer)
- Brings cold, nutrient-rich water from the Arctic Ocean southward
- Causes frequent typhoons to strike Japan's interior mountain regions
- Creates the heavy snowfall on Japan's Sea of Japan coast in winter
Correct answer: Transports warm water northward along Japan's Pacific coast
The Kuroshio (Black Current) is a warm ocean current that flows northward along Japan's Pacific coast, moderating coastal temperatures and influencing rainfall patterns.
Question 48: The phenomenon where light bends as it passes from one medium to another is called:
- Diffraction
- Absorption
- Refraction (Correct answer)
- Reflection
Correct answer: Refraction
Refraction is the bending of a wave as it crosses the boundary between two media with different wave speeds.
Question 49: From the choices below, choose the statement that correctly describes a human reflex.
- The pathway by which excitation is transmitted during a reflex is called the reflex arc. (Correct answer)
- The center of the flexor reflex is the midbrain.
- The center of the patellar tendon reflex is the medulla oblongata.
- During a reflex, the excitation is transmitted to the reflex center via the cerebrum.
Correct answer: The pathway by which excitation is transmitted during a reflex is called the reflex arc.
Explanation: <br> A reflex arc is the neural pathway that allows a reflex action to occur in response to a stimulus. It involves sensory neurons detecting the stimulus, transmitting signals to the spinal cord or brainstem (not the cerebrum), and then motor neurons sending signals to produce the reflexive response. This process bypasses conscious control to enable rapid reactions.
Question 50: æ¥æ¬åœæ²æ³ã«ããã倩çã®å°äœã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- åœæ°çµ±åã®è±¡åŸŽã§ãããåœäºè¡çºã®ã¿ãè¡ãã (Correct answer)
- å é£ã®å©èšãšæ¿èªãªãã«ãæ¿æ²»çæš©èœãè¡äœ¿ããã
- åœäŒã®æåã«åºã¥ããŠãæ³åŸãå¶å®ããã
- åœã®å éŠã§ãããè¡æ¿æš©ãçµ±æ¬ããã
Correct answer: åœæ°çµ±åã®è±¡åŸŽã§ãããåœäºè¡çºã®ã¿ãè¡ãã
æ¥æ¬åœæ²æ³ç¬¬1æ¡ã§å€©çã¯ãæ¥æ¬åœã®è±¡åŸŽã§ããæ¥æ¬åœæ°çµ±åã®è±¡åŸŽããšå®ããããŠããŸãããŸãã第4æ¡ã§ãåœæ¿ã«é¢ããæš©èœãæããªãããšããã第7æ¡ã«å®ããããåœäºè¡çºã®ã¿ããå é£ã®å©èšãšæ¿èªã®ããšã§è¡ããŸãã
Question 51: In an EJU essay, which conjunction best introduces a contrasting idea in formal Japanese writing?
- ãããŠ
- ãŸã
- ã ãã
- ããã (Correct answer)
Correct answer: ããã
ããã means 'however' and is the standard formal conjunction for introducing contrasting ideas.
Question 52: ïŒé³å£°ïŒ 倧åŠã®äºå宀ããåŠçãžã®çå®çªé»è©±ã¡ãã»ãŒãžã§ãã ãããã«ã¡ã¯ãABC倧åŠã®åŠç課ã§ããçåŠçã®ãã ã»ãã³ãžã¥ã³ããã«ãç¥ããã§ããå æ¥ç³è«ããã奚åŠéã®æžé¡ã§ãããäžãæã眲åãæããŠãããšããããããŸããã倧å€ç³ãèš³ãããŸããããä»é±ã®éææ¥ãŸã§ã«ãåŠç課ã®çªå£ãŸã§ãè¶ãããã ããŸãã§ããããã詳ããå Žæã¯æžé¡ã®è£ã«æžããŠãããŸãã®ã§ããã¡ããã確èªãã ããããããããé¡ãããŸããã ïŒè³ªåïŒ ãã ããã¯ããªã倧åŠã®åŠç課ã«è¡ããªããã°ãªããŸãããã
- æžé¡ã®æžãæ¹ãæããŠãããããã
- 奚åŠéãåãåãããã
- æžé¡ã«çœ²åã远å ããããã (Correct answer)
- æ°ãã奚åŠéã«ç³ã蟌ãããã
Correct answer: æžé¡ã«çœ²åã远å ããããã
ã¡ãã»ãŒãžã§ã¯ããäžãæã眲åãæããŠãããšããããããŸããããšèšã£ãŠããããã®ããã«éææ¥ãŸã§ã«åŠçèª²ã«æ¥ãããã«äŸé ŒããŠããŸãããããã£ãŠããã ããã¯è¶³ããªã眲åãããããã«åŠç課ãžè¡ãå¿ èŠããããŸãã
Question 53: Snell's Law relates which two quantities at the interface between two media?
- The angles of incidence and refraction and the refractive indices of the two media (Correct answer)
- The speeds of sound in the two media
- The amplitudes of the incident and reflected waves
- The frequencies of the incident and refracted waves
Correct answer: The angles of incidence and refraction and the refractive indices of the two media
Snell's Law states n1 sin Ξ1 = n2 sin Ξ2, relating the refractive indices and angles of incidence and refraction.
Question 54: There are 6 students. In how many ways can a president, vice-president, and treasurer be chosen from this group, assuming no student can hold more than one office?
- 18
- 120 (Correct answer)
- 216
- 20
Correct answer: 120
This is a permutation problem because the order of selection matters (president, vice-president, and treasurer are distinct positions). The number of ways to arrange 3 students from a group of 6 is calculated as âPâ = 6! / (6-3)! = 6 * 5 * 4 = 120.
Question 55: The Japanese honorific system (æ¬èª) used in formal writing includes which three main categories?
- å°æ¬èª, è¬è²èª, äžå¯§èª (Correct answer)
- æ¬èª, ã«ã¿ã«ãèª, 挢èª
- äžå¯§èª, 話ãèšè, æžãèšè
- æ®éèª, æ¬èª, äžèª
Correct answer: å°æ¬èª, è¬è²èª, äžå¯§èª
Japanese honorific speech (æ¬èª) is divided into respectful language (å°æ¬èª), humble language (è¬è²èª), and polite language (äžå¯§èª).
Question 56: ã€ã®ãªã¹ã®ç£æ¥é©åœæã«ãå·¥æ¥å°åž¯ã®ãªãªã·ã¢ããªãšãã·ã£ã¯ïŒèŸïŒã«ãããŠãæè²ã®åäœã®å²åãå¢å ããçŸè±¡ãæããã説æããé²åã®ã¡ã«ããºã ã¯äœãã
- éºäŒçæµ®å
- çªç¶å€ç°
- èªç¶éžæ (Correct answer)
- 人çºéžæ
Correct answer: èªç¶éžæ
ãã®çŸè±¡ã¯ãå·¥æ¥æåããšããŠç¥ãããèªç¶éžæã®å žåçãªäŸã§ãããç£æ¥é©åœã«ããå·¥å Žã®ç €ã§æšã®å¹¹ãé»ããªã£ããããæããè²ã®èŸã¯é³¥ã«æé£ããããããªããæè²ã®èŸãçãæ®ãããããªã£ãããã®çµæãçåãšç¹æ®ã«æå©ãªæè²ã®åœ¢è³ªãæã€åäœãå¢å ãããããã¯ç°å¢ãžã®é©å¿ãèªç¶éžæã«ãã£ãŠåŒãèµ·ããããããšã瀺ããŠããã
Question 57: What is electric power (P) in terms of voltage (V) and current (I)?
- P = V/I
- P = VI (Correct answer)
- P = I/V
- P = V + I
Correct answer: P = VI
Electric power is calculated as P = VI, the product of voltage and current.
Question 58: Japan became a major industrial power despite limited natural resources primarily through:
- Developing unique renewable energy technologies before other industrialized nations
- Importing raw materials and energy, adding value through skilled manufacturing, and exporting finished goods (Correct answer)
- Discovering large offshore oil reserves in the 1950s that funded rapid industrialization
- Exploiting colonial territories across Asia to supply raw materials through the mid-20th century
Correct answer: Importing raw materials and energy, adding value through skilled manufacturing, and exporting finished goods
Japan's economic model centers on importing raw materials (iron ore, coal, petroleum) and energy, processing them with skilled labor and advanced technology, and exporting high-value manufactured products.
Question 59: Two resistors of 4Ω and 6Ω are connected in series. What is the total resistance?
- 2.4Ω
- 10Ω (Correct answer)
- 5Ω
- 24Ω
Correct answer: 10Ω
For resistors in series, total resistance R_total = R1 + R2 = 4 + 6 = 10Ω.
Question 60: åäœäœã§ãã ³âµCl 㚠³â·Cl ã®é¢ä¿ã«ã€ããŠãæ£ããèšè¿°ã¯ã©ããã
- éœåã®æ°ã¯åãã ããååŠçæ§è³ªã倧ããç°ãªãã
- éœåã®æ°ã¯åãã ããäžæ§åã®æ°ãç°ãªãã (Correct answer)
- äžæ§åã®æ°ã¯åãã ããéœåã®æ°ãç°ãªãã
- éœåãšäžæ§åã®äž¡æ¹ã®æ°ãç°ãªãã
Correct answer: éœåã®æ°ã¯åãã ããäžæ§åã®æ°ãç°ãªãã
åäœäœïŒã¢ã€ãœããŒãïŒãšã¯ãååçªå·ïŒéœåã®æ°ïŒãåãã§ãè³ªéæ°ïŒéœåã®æ°ãšäžæ§åã®æ°ã®åèšïŒãç°ãªãååå士ã®é¢ä¿ãæããŸãã³âµCl 㚠³â·Cl ã¯ã©ã¡ããå¡©çŽ ååãªã®ã§ãéœåã®æ°ã¯åã17åã§ããããããè³ªéæ°ã35ãš37ã§ç°ãªããããäžæ§åã®æ°ãç°ãªããŸãïŒÂ³âµClã¯18åã³â·Clã¯20åïŒã
Question 61: The graph of the quadratic function y = ax² + bx + c opens downwards and has two distinct x-intercepts. Which of the following must be true?
- a > 0 and b² - 4ac > 0
- a < 0 and b² - 4ac < 0
- a > 0 and b² - 4ac < 0
- a < 0 and b² - 4ac > 0 (Correct answer)
Correct answer: a < 0 and b² - 4ac > 0
For a quadratic function y = ax² + bx + c, the graph opens downwards if the leading coefficient 'a' is negative (a < 0). The number of x-intercepts is determined by the discriminant, Π= b² - 4ac. For two distinct x-intercepts, the discriminant must be positive (b² - 4ac > 0). Therefore, both a < 0 and b² - 4ac > 0 must be true.
Question 62: If f(x) = 2x + 3 and g(x) = x² - 1, what is f(g(2))?
- 7
- 11
- 9 (Correct answer)
- 13
Correct answer: 9
g(2) = 4 - 1 = 3. Then f(3) = 2(3) + 3 = 9.
Question 63: The point P(3, -1) is reflected across the line y = x. What are the coordinates of the image P'?
- (-1, 3) (Correct answer)
- (1, -3)
- (-3, 1)
- (3, 1)
Correct answer: (-1, 3)
Reflection across y = x swaps the x and y coordinates. So P(3, -1) maps to P'(-1, 3).
Question 64: Which of the following is an example of a compound sentence connector used in formal Japanese essays to add information?
- ãã
- ããã« (Correct answer)
- ãã
- ã§ã
Correct answer: ããã«
ããã« means 'furthermore' or 'in addition,' and is an appropriate formal connector used to add supporting information in academic essays.
Question 65: 次ã®å çŽ ã®ãã¡ã第äžã€ãªã³åãšãã«ã®ãŒãæã倧ãããã®ã¯ã©ããã
- ããªãŠã (He) (Correct answer)
- ãããªãŠã (Na)
- ãªããŠã (Li)
- ã«ãªãŠã (K)
Correct answer: ããªãŠã (He)
第äžã€ãªã³åãšãã«ã®ãŒã¯ãååããé»åã1ååãå»ãã®ã«å¿ èŠãªãšãã«ã®ãŒã§ããåšæè¡šã«ãããŠã第äžã€ãªã³åãšãã«ã®ãŒã¯äžè¬ã«åšæã®å³ã«è¡ãã»ã©ããŸãæã®äžã«è¡ãã»ã©å€§ãããªãåŸåããããŸããããªãŠã (He)ã¯åšæè¡šã®æãå³äžã«äœçœ®ããåžã¬ã¹å çŽ ã§ãããéåžžã«å®å®ããé»åé 眮ãæã€ãããé»åãåãå»ãã®ã極ããŠå°é£ã§ãããããã£ãŠããªã¹ããããå çŽ ã®äžã§ç¬¬äžã€ãªã³åãšãã«ã®ãŒãæã倧ãããªããŸãã
Question 66: ã¡ã³ãã«ã®éºäŒã®æ³åã«é¢ããå®éšã§ãäžžãçš®åïŒé¡æ§ïŒã®çŽç³»ãšããã®ããçš®åïŒæœæ§ïŒã®çŽç³»ã亀é ããŠF1ïŒåäžä»£ïŒãåŸããæ¬¡ã«ããã®F1ãèªå®¶å粟ãããŠF2ïŒå«äžä»£ïŒãåŸããF2ã«ãããäžžãçš®åãšããã®ããçš®åã®è¡šçŸåã®å颿¯ãšããŠãæãé©åãªãã®ã¯ã©ããã
- äžžïŒãã = 2ïŒ1
- äžžïŒãã = 1ïŒ1
- äžžïŒãã = 1ïŒ3
- äžžïŒãã = 3ïŒ1 (Correct answer)
Correct answer: äžžïŒãã = 3ïŒ1
顿§ã®æ³åã«ãããF1äžä»£ã¯ãã¹ãŠäžžãçš®åïŒéºäŒååã¯ãããæ¥åïŒãšãªããåé¢ã®æ³åã«ããã°ãF1ãäœãé å¶åã¯é¡æ§éºäŒåãšæœæ§éºäŒåã1:1ã®æ¯ã§æã€ãF1ã®èªå®¶å粟ã«ãããF2äžä»£ã§ã¯éºäŒååã1:2:1ïŒé¡æ§ãã¢ïŒãããïŒæœæ§ãã¢ïŒã®æ¯ã§çããããã®çµæã衚çŸåã¯äžžãçš®åïŒé¡æ§ïŒãšããã®ããçš®åïŒæœæ§ïŒã3:1ã®æ¯ã§çŸããã
Question 67: èµ€ç·è²èŠç°åžžã¯Xæè²äœäžã®æœæ§éºäŒåã«ãã£ãŠèµ·ãã䌎æ§éºäŒã§ãããç¶èŠªãèµ€ç·è²èŠç°åžžã§ãæ¯èŠªããã®éºäŒåãæããªãïŒæ£åžžãªïŒå ŽåãçãŸããŠããç·ã®åãèµ€ç·è²èŠç°åžžã§ãã確çã¯äœ%ãã
- 50%
- 25%
- 0% (Correct answer)
- 100%
Correct answer: 0%
ç·ã®åã¯æ¯èŠªããXæè²äœããç¶èŠªããYæè²äœãåãç¶ãããã®å Žåãæ¯èŠªã¯èµ€ç·è²èŠç°åžžã®éºäŒåãæããªãæ£åžžãªXæè²äœããæã£ãŠããªãããããã£ãŠãæ¯èŠªããåãç¶ãXæè²äœã¯å¿ ãæ£åžžãªãã®ã§ãããããçãŸããŠããç·ã®åãèµ€ç·è²èŠç°åžžã«ãªãããšã¯ãªãã確çã¯0%ã§ããã
Question 68: æ¥é²æŠäºïŒ1904-1905ïŒã«ãããæ¥æ¬ã®åå©ããåœé瀟äŒã«äžããæã倧ããªåœ±é¿ã¯äœãã
- ã¢ã¡ãªã«åè¡åœããšãŒãããã®æ€æ°å°äž»çŸ©ã«å¯Ÿæãããããæ¥æ¬ãšæ£åŒãªè»äºåçãç· çµãããã£ãããšãªã£ãã
- ãã·ã¢åžåœã®å³æåŽ©å£ãšãœããšãé£éŠã®æç«ãæããã
- ã¢ãžã¢ã®è¿ä»£åœå®¶ãåããŠãšãŒãããã®å匷ã«åå©ããããšã§ãä»ã®ã¢ãžã¢è«žåœã®æ°æäž»çŸ©éåãéŒèããã (Correct answer)
- æ¥æ¬ãç²åŸãããã¹ãŠã®é åãäžåœã«è¿éãã平忡çŽãç· çµããã
Correct answer: ã¢ãžã¢ã®è¿ä»£åœå®¶ãåããŠãšãŒãããã®å匷ã«åå©ããããšã§ãä»ã®ã¢ãžã¢è«žåœã®æ°æäž»çŸ©éåãéŒèããã
æ¥æ¬ã®åå©ã¯ããšãŒãããã®è»äºçãªç¡æµç¥è©±ãæã¡ç Žãç»æçãªåºæ¥äºã§ããããã®åå©ã¯ãã¢ãžã¢ãä»ã®æ€æ°å°åãããå°åå šäœã®æ°æäž»çŸ©éåã«åŒ·åãªç²Ÿç¥çåŸæŒããšã¢ãã«ãæäŸããéãšãŒãããåœå®¶ã§ãè¿ä»£åã«æåãã西欧ååŒ·ã«ææŠã§ããããšã瀺ããŸããã
Question 69: ïŒé³å£°ïŒ é§ ã®ã¢ããŠã³ã¹ãæµããŠããŸãã ããŸããªããäžçªç·ã«ã15æ30åçºãç¹å¥æ¥è¡ããããå·ã暪æµè¡ããå°çããŸãããã®é»è»ã¯ã6䞡線æã§ãåã®2äž¡ã1å·è»ãš2å·è»ãæå®åžãåŸãã®4äž¡ã3å·è»ãã6å·è»ãèªç±åžã§ããæå®åžããå©çšã®ã客æ§ã¯ããææã¡ã®å笊ã®å·è»çªå·ãã確ããã®äžããåŸ ã¡ãã ããããªãããã®é»è»ã¯ãéäžã®å·åŽé§ ã«ã¯æ¢ãŸããŸããã®ã§ããæ³šæãã ãããã ïŒè³ªåïŒ ãã®é»è»ã«ã€ããŠãæ£ãããã®ã¯ã©ãã§ããã
- ãã®é»è»ã¯å šéšã§4䞡線æã§ããã
- èªç±åžã¯1å·è»ãš2å·è»ã§ããã
- æå®åžã¯åã®è»äž¡ã«ããã (Correct answer)
- ãã®é»è»ã¯å·åŽé§ ã«åè»ããã
Correct answer: æå®åžã¯åã®è»äž¡ã«ããã
ã¢ããŠã³ã¹ã§ã¯ããåã®2äž¡ã1å·è»ãš2å·è»ãæå®åžããšæç¢ºã«èª¬æããŠããŸãããããã£ãŠããæå®åžã¯åã®è»äž¡ã«ããããšãããã®éžæè¢ãå 容ãšäžèŽããŠããŸããä»ã®éžæè¢ã¯ããå·åŽé§ ã«ã¯æ¢ãŸããŸããããã3å·è»ãã6å·è»ãèªç±åžããã6䞡線æããšããã¢ããŠã³ã¹ã®å 容ãšççŸããŸãã
Question 70: ïŒé³å£°ïŒ å çãææ¥ã§è©±ããŠããŸãã ãã¿ãªãããæ¥é±ã®ãã¬ãŒã³ããŒã·ã§ã³ã®æºåã¯é²ãã§ããŸãããããŒãã¯èªç±ã§ãããããã€ã泚æç¹ããããŸãããŸããæéã¯äžäºº5åå³å®ã§ããé·ãããŠãçãããŠãæžç¹å¯Ÿè±¡ãšãªããŸããæ¬¡ã«ãçºè¡šã®éã«ã¯ãå¿ ãäžã€ä»¥äžã®ã°ã©ããåçãªã©ã®èŠèŠè³æã䜿ã£ãŠãã ããã話ãã ãã§ã¯ãèããŠãã人ã«å 容ãäŒããã«ããããã§ããæåŸã«ãçºè¡šåŸã«ã¯è³ªçå¿çã®æéãèšããŸãã®ã§ãä»ã®äººã®çºè¡šããã£ããèããŠã質åãèããŠãããŠãã ãããã ïŒè³ªåïŒ å çã話ããæ³šæç¹ãšããŠãæ£ãããªããã®ã¯ã©ãã§ããã
- ä»ã®äººã®çºè¡šãèãå¿ èŠã¯ãªãã (Correct answer)
- çºè¡šã®ããŒãã¯èªåã§æ±ºããããšãã§ããã
- çºè¡šã«ã¯åçãã°ã©ããå¿ ãå«ããªããã°ãªããªãã
- çºè¡šæéã¯5åã¡ããã©ã§ãªããã°ãªããªãã
Correct answer: ä»ã®äººã®çºè¡šãèãå¿ èŠã¯ãªãã
å çã¯æåŸã«ãä»ã®äººã®çºè¡šããã£ããèããŠã質åãèããŠãããŠãã ããããšè¿°ã¹ãŠããŸããããã¯ãä»ã®äººã®çºè¡šãèãããšãå¿ èŠã§ãããšããæå³ãªã®ã§ããä»ã®äººã®çºè¡šãèãå¿ èŠã¯ãªãããšããéžæè¢ã¯ãå çã®æç€ºãšå察ã®å 容ã§ãããæ£ãããããŸããã
Question 71: Which of the following best explains the high frequency of earthquakes and volcanic eruptions in the Asia-Pacific region, including Japan?
- Multiple major tectonic plates converge around the Pacific Ocean basin, creating the Ring of Fire (Correct answer)
- The region contains an unusually high concentration of radioactive minerals that heat the crust
- Strong ocean currents in the Pacific generate enormous pressure on the ocean floor
- The region's dense population increases cumulative stress on the Earth's crust over time
Correct answer: Multiple major tectonic plates converge around the Pacific Ocean basin, creating the Ring of Fire
The Pacific Ring of Fire is defined by the convergence of multiple tectonic plates â including the Pacific, Philippine, Eurasian, and North American plates â producing intense seismic and volcanic activity.
Question 72: From the choices below, choose the statement that correctly describes ribosomes:
- Ribosomes have a double-membrane structure.
- Ribosomes contain an enzyme that breaks down excess proteins.
- Prokaryotic ribosomes reside in the cytoplasm; eukaryotic ribosomes reside in the nucleus.
- Ribosomes are the site of protein synthesis. (Correct answer)
Correct answer: Ribosomes are the site of protein synthesis.
Explanation: <br> Ribosomes are responsible for translating mRNA into proteins, making them essential for protein synthesis in both prokaryotic and eukaryotic cells.
Question 73: ç¬¬äºæ¬¡äžç倧æŠåŸã«å¶å®ãããæ¥æ¬åœæ²æ³ïŒããããã平忲æ³ãïŒã®åºæ¬ååã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- æ¥æ¬ã®æŽå²äžåããŠäºé¢å¶ã®åœäŒãåµèšããã
- 倩çã«æé«ã®æ¿æ²»çã»è»äºçæš©åšãäžããŠããã
- 倩çãç¥éã®é·ãšå®ããŠããã
- åœã®äž»æš©çæš©å©ãšããŠã®æŠäºãæŸæ£ããæŠåã®äžä¿æãå®ããŠããã (Correct answer)
Correct answer: åœã®äž»æš©çæš©å©ãšããŠã®æŠäºãæŸæ£ããæŠåã®äžä¿æãå®ããŠããã
1947å¹Žæ²æ³ã®æãæåã§æ±ºå®çãªç¹åŸŽã¯ç¬¬9æ¡ã§ãããã®æ¡æã¯ããæ¥æ¬åœæ°ã¯ã...åœæš©ã®çºåããæŠäºãšãæŠåã«ããåšååã¯æŠåã®è¡äœ¿ã¯ãåœéçŽäºã解決ããææ®µãšããŠã¯ãæ°žä¹ ã«ãããæŸæ£ããããšå®ãããéžæµ·ç©ºè»ãã®ä»ã®æŠåã¯ããããä¿æããªãããšèŠå®ããŠããŸããããã¯æ¥æ¬ã®æŠåŸã¢ã€ãã³ãã£ãã£ã®ç€ã§ãã
Question 74: Find the number of terms in the arithmetic sequence: 5, 9, 13, ..., 101.
- 24
- 20
- 26
- 25 (Correct answer)
Correct answer: 25
The nth term is aâ = 5 + (n-1)(4) = 4n + 1. Setting 4n + 1 = 101: n = 25.
Question 75: What happens in the human body when the body temperature decreases? From the choices below, choose the statement that is NOT correct.
- Arrector pili muscles contract.
- Adrenaline secretion is stimulated.
- Heartbeat is accelerated by the action of the sympathetic nervous system.
- Metabolism in the liver and skeletal muscles is inhibited. (Correct answer)
- Blood vessels in the skin constrict.
Correct answer: Metabolism in the liver and skeletal muscles is inhibited.
Explanation: <br> When body temperature decreases (hypothermia), the body initiates several responses to maintain warmth and normal physiological function: <br> *Heartbeat is accelerated by the action of the sympathetic nervous system: This helps circulate blood faster to distribute heat. <br> *Adrenaline secretion is stimulated: Adrenaline (epinephrine) increases metabolic rate to generate heat. <br> *Arrector pili muscles contract: This causes goosebumps, which can help trap heat. <br> *Blood vessels in the skin constrict (vasoconstriction): This reduces blood flow to the skin, minimizing heat loss.
Question 76: VSEPRçè«ïŒåå䟡殻é»å察åçºåïŒã«åºã¥ããšãã¡ã¿ã³ïŒCHâïŒååã®ç«äœæ§é ã¯äœãã
- äžè§é圢
- å¹³é¢äžè§åœ¢
- æ£åé¢äœåœ¢ (Correct answer)
- çŽç·åœ¢
Correct answer: æ£åé¢äœåœ¢
ã¡ã¿ã³ïŒCHâïŒååã§ã¯ãäžå¿ã®ççŽ ååã4ã€ã®æ°ŽçŽ ååãšåçµåã圢æããŠããŸããããã«ãããççŽ ååã®åšãã«ã¯4察ã®å ±æé»å察ãååšããŸããVSEPRçè«ã«ãããšããããã®é»å察ã¯äºãã«åçºãã空éçã«æãé¢ããäœçœ®ã«é 眮ãããŸãã4ã€ã®é»å察ãæãé¢ããããšãã§ããé çœ®ã¯æ£åé¢äœæ§é ã§ãããçµåè§ã¯çŽ109.5床ã«ãªããŸãã
Question 77: In formal Japanese essay writing, which ending style is expected on the EJU?
- ãã ã / ãã (casual style)
- ãã / ããã (conversational style)
- ãã§ã / ããŸã (polite style)
- ãã / ãã§ãã (plain/formal style) (Correct answer)
Correct answer: ãã / ãã§ãã (plain/formal style)
EJU essays require the ãã / ãã§ãã style, which is standard for academic and formal writing in Japanese.
Question 78: In the EJU physics context, what phenomenon occurs when two waves overlap and their displacements add together?
- Superposition (Correct answer)
- Diffraction
- Polarization
- Refraction
Correct answer: Superposition
The principle of superposition states that when two waves meet, the resulting displacement is the sum of the individual displacements.
Question 79: An object is launched with an initial velocity at an angle to the horizontal. Neglecting air resistance, which of the following quantities is zero when the object reaches the highest point of its trajectory?
- The horizontal component of its acceleration
- The horizontal component of its velocity
- The vertical component of its velocity (Correct answer)
- Its acceleration
Correct answer: The vertical component of its velocity
In projectile motion, the velocity has two components: horizontal and vertical. The horizontal velocity is constant (assuming no air resistance). The vertical velocity is affected by gravity, decreasing as the object rises and increasing as it falls. At the very peak of its trajectory, the object momentarily stops moving upward before it begins to fall, so its vertical velocity is zero at that instant. Its acceleration is never zero; it is always equal to the acceleration due to gravity (g), which acts downwards.
Question 80: Which of the following correctly uses the passive form (å身圢) in Japanese?
- å çã«è€ããããã (Correct answer)
- å çã«è€ããã
- å çãè€ããããã
- å çãè€ããã
Correct answer: å çã«è€ããããã
å çã«è€ãããã means 'I was praised by the teacher,' correctly using the passive form with ã« for the agent.
Examination for Japanese University Admission (EJU)
The EJU assesses international students' academic abilities for admission to Japanese universities, covering Japanese language, science, mathematics, and Japan and the World (social studies).
Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong â answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds