Examination for Japanese University Admission (EJU) â Questions and Answers
Question 1: 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
- ã¬ããŒãã®æžãæ¹ãåãããªãããšã
- å çã玹ä»ããæ¬ãé£ããããšã
- ã¬ããŒãã®ããŒããæ±ºãŸããªãããšã (Correct answer)
- 峿žé€šã§è³æãèŠã€ãããªãããšã
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 2: What is the relationship between wave frequency (f), wavelength (λ), and wave speed (v)?
- v = λ / f
- v = f / λ
- v = f + λ
- v = fλ (Correct answer)
Correct answer: v = fλ
The wave equation v = fλ states that wave speed equals frequency multiplied by wavelength.
Question 3: The Kuroshio Current is significant for Japan's climate because it:
- Brings cold, nutrient-rich water from the Arctic Ocean southward
- Transports warm water northward along Japan's Pacific coast (Correct answer)
- 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 4: A bag contains 3 red and 5 blue balls. Two balls are drawn at random without replacement. What is the probability that both are red?
- 1/8
- 6/64
- 3/28 (Correct answer)
- 3/56
Correct answer: 3/28
P(both red) = C(3,2)/C(8,2) = 3/28.
Question 5: 2015幎ã«åœé£ãµãããã§æ¡æããããæç¶å¯èœãªéçºç®æšïŒSDGsïŒãã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- ã誰äžäººåãæ®ããªãããšããç念ã«åºã¥ããçµæžã»ç€ŸäŒã»ç°å¢ã®äžåŽé¢ãçµ±åçã«æ±ãæ®éçãªç®æšã§ããã (Correct answer)
- çºå±éäžåœã®ã¿ãéæãã¹ãç®æšãšããŠèšå®ãããŠãããå é²åœã¯æ¯æŽã«åŸ¹ããã
- äž»ã«ç°å¢åé¡ã®è§£æ±ºãç®çãšããŠãããçµæžæé·ã¯æå¶ãã¹ã察象ãšãããŠããã
- 2000幎ã«çå®ããããã¬ãã¢ã éçºç®æšïŒMDGsïŒã®ç®æšããã®ãŸãŸåŒãç¶ãã ãã®ã§ããã
Correct answer: ã誰äžäººåãæ®ããªãããšããç念ã«åºã¥ããçµæžã»ç€ŸäŒã»ç°å¢ã®äžåŽé¢ãçµ±åçã«æ±ãæ®éçãªç®æšã§ããã
SDGsïŒSustainable Development GoalsïŒã¯ãã誰äžäººåãæ®ããªãããåºæ¬ç念ãšããçºå±éäžåœã ãã§ãªãå é²åœèªèº«ãåãçµãã¹ãæ®éçãªç®æšã§ããçµæžæé·ã瀟äŒçå æãç°å¢ä¿è·ãšãã3ã€ã®åŽé¢ãçµ±åçã«æ±ããæç¶å¯èœãªäžçãç®æããŸããå身ã®MDGsãäž»ã«éäžåœã®èª²é¡ã«çŠç¹ãåœãŠãŠããã®ã«å¯ŸããSDGsã¯å šãŠã®åœã察象ã§ãããç®æšã®ç¯å²ãå€§å¹ ã«æ¡å€§ãããŠããŸãã
Question 6: When writing an EJU essay arguing for a position, what technique strengthens the argument?
- Providing specific examples and reasons to support the main claim (Correct answer)
- Avoiding any personal opinion
- Using as many kanji as possible
- Writing only general statements without specifics
Correct answer: Providing specific examples and reasons to support the main claim
Strong EJU essays are characterized by a clear thesis supported by specific examples and logical reasons rather than vague generalizations.
Question 7: 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
- çºè¡šæéã¯5åã¡ããã©ã§ãªããã°ãªããªãã
- ä»ã®äººã®çºè¡šãèãå¿ èŠã¯ãªãã (Correct answer)
- çºè¡šã«ã¯åçãã°ã©ããå¿ ãå«ããªããã°ãªããªãã
- çºè¡šã®ããŒãã¯èªåã§æ±ºããããšãã§ããã
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 8: 次ã®ç©è³ªã®ãã¡ãååéã«æ°ŽçŽ çµåã圢æããã®ã¯ã©ããã
- å¡©åæ°ŽçŽ (HCl)
- ã¡ã¿ã³ (CHâ)
- ç¡«åæ°ŽçŽ (HâS)
- ããåæ°ŽçŽ (HF) (Correct answer)
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 9: 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 = 1ïŒ3
- äžžïŒãã = 1ïŒ1
- äžžïŒãã = 3ïŒ1 (Correct answer)
- äžžïŒãã = 2ïŒ1
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 10: 17äžçŽã«åŸ³å·å¹åºããéåœãæ¿çã宿œããäž»ãªçç±ãšããŠãæãé©åãªãã®ã¯ã©ããã
- ãªã©ã³ãæ±ã€ã³ãäŒç€Ÿãšã®ç糞貿æãç¬å ããããã
- æ¥æ¬äººã®æµ·å€ç§»äœã奚å±ããè²¿ææ€æ°å°ãèšç«ããããã
- ããªã¹ãæã®åžæãé²ããå€åœå¢åã®åœ±é¿åãå¶éããããã (Correct answer)
- ãšãŒãããå匷ã«å¯Ÿæãããããäžåœãšè»äºåçãçµã¶ããã
Correct answer: ããªã¹ãæã®åžæãé²ããå€åœå¢åã®åœ±é¿åãå¶éããããã
埳å·å¹åºã¯ãããªã¹ãæãç¹ã«ã«ããªãã¯ã®åžæãå¹åºã®æš©åšã瀟äŒç§©åºãè ãããã®ãšèŠãªããŠããŸãããããã¯ãä¿¡è ã®å¿ èª å¿ãåè£ããå€åœã®ä»å ¥ã«ã€ãªããå¯èœæ§ããããšæããããã§ããå€åœã®åœ±é¿åãå¶éããããšã¯ãå®å®ãç¶æããããã®éèŠãªææ®µã§ããã
Question 11: Two vectors are given: aâ = (3, 4) and bâ = (1, -2). What is the dot product aâ · bâ?
- 5
- -11
- 11
- -5 (Correct answer)
Correct answer: -5
aâ · bâ = (3)(1) + (4)(-2) = 3 - 8 = -5.
Question 12: Ohm's Law states that the current through a conductor is:
- Independent of voltage
- Equal to the product of voltage and resistance
- Directly proportional to the voltage and inversely proportional to the resistance (Correct answer)
- Directly proportional to resistance and inversely proportional to voltage
Correct answer: Directly proportional to the voltage and inversely proportional to the resistance
Ohm's Law: I = V/R, meaning current equals voltage divided by resistance.
Question 13: Which Japanese city is located on the island of Hokkaido?
- Sapporo (Correct answer)
- Fukuoka
- Osaka
- Nagoya
Correct answer: Sapporo
Sapporo is Japan's fifth-largest city and the capital of Hokkaido Prefecture, situated on Japan's northernmost main island.
Question 14: 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)?
- -21
- -17
- -54
- -39 (Correct answer)
- -4.0
- -43
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 15: Japan's policy of protecting 'satochi satoyama' (éå°éå±±) landscapes refers to preserving:
- Traditional rural mosaics of rice paddies, grasslands, and secondary forests (Correct answer)
- Industrial zones converted from former farmland for manufacturing use
- Coastal reclamation projects that expand agricultural land into the sea
- Urban renewal zones designated for sustainable city development
Correct answer: Traditional rural mosaics of rice paddies, grasslands, and secondary forests
Satochi satoyama describes Japan's traditional rural landscape â a mosaic of rice paddies, managed forests, and grasslands â recognized for its biodiversity and cultural heritage.
Question 16: 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·åŽé§ ã«åè»ããã
- èªç±åžã¯1å·è»ãš2å·è»ã§ããã
- æå®åžã¯åã®è»äž¡ã«ããã (Correct answer)
- ãã®é»è»ã¯å šéšã§4䞡線æã§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 17: Which of the following is an example of a compound sentence connector used in formal Japanese essays to add information?
- ã§ã
- ãã
- ããã« (Correct answer)
- ãã
Correct answer: ããã«
ããã« means 'furthermore' or 'in addition,' and is an appropriate formal connector used to add supporting information in academic essays.
Question 18: Solve the inequality x² - 3x - 10 < 0. Which interval represents all solutions?
- -5 < x < 2
- x < -2 or x > 5
- x < -5 or x > 2
- -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 19: Which word order is standard in a formal Japanese sentence?
- Object â Verb â Subject
- Verb â Subject â Object
- Subject â Verb â Object
- Subject â Object â Verb (Correct answer)
Correct answer: Subject â Object â Verb
Japanese follows SOV (Subject-Object-Verb) order, with the verb always at the end of a clause.
Question 20: A gamma-ray tube is used to treat a tumor located 5.7 cm under the skin of the patient. In order not to damage an organ on top of the tumor, the technician moves the tube 8.3 cm. to one side. What would be the angle of the tube for the gamma rays to affect the tumor?
- 55°31â14â
- 51°35â24â
- 34°28â45â (Correct answer)
- 34°11â19â
Correct answer: 34°28â45â
Explanation: <br> The angle of the tube for the gamma rays to affect the tumor can be calculated using trigonometry. Since the tumor is located 5.7 cm under the skin and the technician moves the tube 8.3 cm to one side, we can consider a right triangle with the hypotenuse being the distance from the tube to the tumor (8.3 cm) and the opposite side is the depth of the tumor (5.7 cm). The angle can be found using the inverse tangent function, which gives us an angle of 34°28â45â.
Question 21: çŸåšã®æ¥æ¬ã®è¡è°é¢è°å¡éžæã§æ¡çšãããŠããéžæå¶åºŠã®åç§°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- å šåœæ¯äŸä»£è¡šå¶
- å®å šé£åå¶
- å°éžæåºæ¯äŸä»£è¡šäžŠç«å¶ (Correct answer)
- å€§éžæåºå¶
Correct answer: å°éžæåºæ¯äŸä»£è¡šäžŠç«å¶
çŸåšã®è¡è°é¢è°å¡éžæã¯ãäžã€ã®éžæåºããäžäººã®è°å¡ãéžã¶ãå°éžæåºå¶ããšãå šåœã11ã®ãããã¯ã«åããŠæ¿å ã®åŸç¥šæ°ã«å¿ããŠè°åžãé åãããæ¯äŸä»£è¡šå¶ããçµã¿åããããå°éžæåºæ¯äŸä»£è¡šäžŠç«å¶ããæ¡çšãããŠããŸãã
Question 22: A capacitor stores energy in the form of:
- Kinetic energy of electrons
- An electric field between its plates (Correct answer)
- Chemical potential energy
- A magnetic field
Correct answer: An electric field between its plates
A capacitor stores energy as an electric field established between its charged plates.
Question 23: What type of electromagnetic wave has the highest frequency?
- Radio waves
- X-rays
- Gamma rays (Correct answer)
- Ultraviolet rays
Correct answer: Gamma rays
Gamma rays have the highest frequency (and shortest wavelength) in the electromagnetic spectrum.
Question 24: 16äžçŽåã°ããã«ãã¬ã«åäººãæ¥æ¬ã«æ¥èªãããåè®è²¿æããšåŒã°ãã貿æãšæå亀æµã®æä»£ãå§ãŸããŸããããã®ææã«ãã«ãã¬ã«äººã«ãã£ãŠæ¥æ¬ã«ããããããæ¥æ¬ã®æŠãæ¹ãæ¿æ²»ã«å€§ããªåœ±é¿ãäžããæãéèŠãªæè¡ã¯äœãã
- ç«çžéïŒéç ²ïŒã (Correct answer)
- çŸ éç€ã
- 掻çå°å·è¡ã
- èžæ°æ©é¢ã
Correct answer: ç«çžéïŒéç ²ïŒã
1543幎ã«ãã«ãã¬ã«äººã«ãã£ãŠéç ²ïŒç«çžéïŒãäŒæ¥ããããšã¯ãæ¥æ¬ã®æŠãæ¹ãæ ¹æ¬çã«å€ããŸãããç¹ç°ä¿¡é·ã®ããã«éç ²ã®å°å ¥ãšè£œé ã«æåãã倧åã¯ãè»äºçã«å€§ããªåªäœæ§ãåŸãããšãã§ãããããæŠåœæä»£ã®çµçãšæ¥æ¬ã®çµ±äžããã»ã¹ã®éèŠãªèŠå ãšãªããŸããã
Question 25: 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
- 人çºéžæ
- èªç¶éžæ (Correct answer)
- éºäŒçæµ®å
- çªç¶å€ç°
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 26: 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
- 0% (Correct answer)
- 50%
- 25%
- 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 27: Japan's demographic challenge of population aging is most directly driven by:
- A total fertility rate that has remained far below the replacement level of about 2.1 (Correct answer)
- Government policies deliberately restricting family size since the 1970s
- Rapid emigration of young working-age adults to other countries
- High infant mortality rates that have reduced the youth population
Correct answer: A total fertility rate that has remained far below the replacement level of about 2.1
Japan's total fertility rate has been well below the replacement level of approximately 2.1 for decades, meaning fewer children are born than needed to sustain the population size.
Question 28: Find the coordinates of the vertex of the parabola defined by the quadratic function y = 2x² - 8x + 5.
- (-8, 197)
- (-2, 29)
- (4, 5)
- (2, -3) (Correct answer)
Correct answer: (2, -3)
The x-coordinate of the vertex of a parabola y = ax² + bx + c is given by the formula x = -b / 2a. For the function y = 2x² - 8x + 5, a = 2 and b = -8. Thus, x = -(-8) / (2 * 2) = 8 / 4 = 2. To find the y-coordinate, substitute x = 2 back into the equation: y = 2(2)² - 8(2) + 5 = 2(4) - 16 + 5 = 8 - 16 + 5 = -3. Therefore, the vertex is at (2, -3).
Question 29: 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
- åææ¥ã®ååŸã¯æŽå€©ãç¶ãã
- åææ¥ã«å€åºãããªãåããã£ãã»ããããã (Correct answer)
- 鱿«ã¯äž¡æ¥ãšãéšãéãå¯èœæ§ãããã
- æ¥ææ¥ã¯åææ¥ããæ¶Œãããªãã
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 30: In triangle ABC, if angle A = 60°, b = 4, and c = 6, what is the value of side a using the law of cosines?
- 4â3
- â52
- â28
- 2â7 (Correct answer)
Correct answer: 2â7
a² = b² + c² - 2bc·cos(A) = 16 + 36 - 2(4)(6)cos(60°) = 52 - 48(0.5) = 52 - 24 = 28. So a = â28 = 2â7.
Question 31: æ¥æ¬ã®åœäŒã¯äºé¢å¶ããšã£ãŠããŸãããã®äºã€ã®è°é¢ã®æ£ããçµã¿åããã¯ã©ããã
- 貎æé¢ãšè¡è°é¢
- äžé¢ãšäžé¢
- è¡è°é¢ãšåè°é¢ (Correct answer)
- åœæ°è°äŒãšå èé¢
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 32: If sin Ξ = 3/5 and 0 < Ξ < Ï/2, what is tan Ξ?
- 3/5
- 5/3
- 3/4 (Correct answer)
- 4/3
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 33: 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«çœ²åã远å ããããã (Correct answer)
- æžé¡ã®æžãæ¹ãæããŠãããããã
- 奚åŠéãåãåãããã
- 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 34: VSEPRçè«ïŒåå䟡殻é»å察åçºåïŒã«åºã¥ããšãã¡ã¿ã³ïŒCHâïŒååã®ç«äœæ§é ã¯äœãã
- æ£åé¢äœåœ¢ (Correct answer)
- å¹³é¢äžè§åœ¢
- äžè§é圢
- çŽç·åœ¢
Correct answer: æ£åé¢äœåœ¢
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Question 35: 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
- å€ã®æé垯ã«åããããšã
- ã³ã³ãããšã³ã¹ã¹ãã¢ã§ã®ä»äºã§ããããšã
- 倧åŠã®è¿ãã§ãæŒéã«åããããšã (Correct answer)
- æçµŠãé«ãããšã
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 36: 以äžã®æç« ãèªãã§ãåŸã®åãã«çããªããã æ¥æ¬ã®ããã£ãããªãããšããèšèã¯ãåã«ãç¡é§ã«ããŠã¯ãããªãããšããæå³ã ãã§ã¯ãªããç©ã ãã§ãªããæéãæèœãªã©ããããããã®ãæã€æ¬æ¥ã®äŸ¡å€ãååã«æŽ»ããããŠããªãç¶æ ã«å¯ŸããŠæãããåŸæãç³ãèš³ãªãã®ææ ãå«ãŸããŠãããäŸãã°ããŸã é£ã¹ãããé£åãæšãŠãŠããŸãããšã ãã§ãªãã誰ãã®èœåãçºæ®ãããã«ããç¶æ³ã«å¯ŸããŠãããã£ãããªãããšæããããã®èšèã¯ãç©ãè³æºã倧åã«ããå¿ãšããã®äŸ¡å€ãæå€§éã«åŒãåºãããšãžã®æ¬æã衚ããŠããã çè ã«ãããšãããã£ãããªãããšããèšèãæã€æ·±ãæå³ã¯ã©ãã§ããã
- ãéãç¯çŽããããã®åãªãã«ãŒã«ã
- ãã¿ãåºããããªãããã«ããããã®æ³åŸã
- ç©ã®äŸ¡å€ãæå€§éã«æŽ»ããããŠããªãããšãžã®æ®å¿µãªæ°æã¡ã (Correct answer)
- çŸä»£ç€ŸäŒã§ã¯ãã䜿ãããªããªã£ãå€ãç¿æ £ã
Correct answer: ç©ã®äŸ¡å€ãæå€§éã«æŽ»ããããŠããªãããšãžã®æ®å¿µãªæ°æã¡ã
The passage explains that 'mottainai' is not just about 'not wasting' but includes a feeling of regret or sorrow when the inherent value of something (things, time, talent) is not fully utilized ("æ¬æ¥ã®äŸ¡å€ãååã«æŽ»ããããŠããªãç¶æ ã«å¯ŸããŠæãããåŸæãç³ãèš³ãªãã®ææ "). This matches the idea of feeling regret that something's value is not being maximized.
Question 37: Which sentence correctly uses the ãŠ-form of a verb to connect two actions in Japanese?
- é£ã¹ããå¯ãŸãã
- é£ã¹ããå¯ãã
- é£ã¹ããå¯ãŸãã
- é£ã¹ãŠãå¯ãŸãã (Correct answer)
Correct answer: é£ã¹ãŠãå¯ãŸãã
The ãŠ-form (é£ã¹ãŠ) connects sequential actions, meaning 'I eat and then sleep.'
Question 38: Two resistors of 4Ω and 6Ω are connected in series. What is the total resistance?
- 5Ω
- 10Ω (Correct answer)
- 24Ω
- 2.4Ω
Correct answer: 10Ω
For resistors in series, total resistance R_total = R1 + R2 = 4 + 6 = 10Ω.
Question 39: For an object undergoing uniform circular motion at a constant speed, which of the following statements is correct?
- Its acceleration is zero because its speed is constant.
- Its acceleration is directed tangent to the circle.
- Its acceleration vector is directed towards the center of the circle. (Correct answer)
- Its velocity is constant.
Correct answer: Its acceleration vector is directed towards the center of the circle.
In uniform circular motion, the speed is constant, but the velocity is not, because velocity is a vector quantity that includes direction, and the direction is continuously changing. This change in velocity means there is an acceleration. This acceleration, called centripetal acceleration, is always directed radially inward, towards the center of the circle, perpendicular to the object's velocity vector (which is tangent to the circle).
Question 40: ããçç©ã®ç¹å®ã®åœ¢è³ªã決å®ããéºäŒåã®çµã¿åãããäœãšåŒã¶ãã
- éºäŒåå (Correct answer)
- 衚çŸå
- 察ç«éºäŒå
- ã²ãã
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 41: The line through points (1, 2) and (4, 8) has slope m. What is m?
- 2 (Correct answer)
- 1/2
- 3
- 6
Correct answer: 2
m = (8 - 2)/(4 - 1) = 6/3 = 2.
Question 42: ææ²»ç¶æ°æã«å®æœãããè¿ä»£åæ¿çã«é¢ããèšè¿°ãšããŠãæ£ãããªããã®ã¯æ¬¡ã®ãã¡ã©ããã
- è©ã廿¢ããŠçã眮ãå»è©çœ®çã®æè¡ã
- åœæ°çå µãååãšããåŸŽå µä»€ã®å¶å®ã
- å€§æ¥æ¬åžåœæ²æ³ãçºåžããåžåœè°äŒãéèšã
- ããªã¹ãæã®çŠæã匷åããéåœæ¿çãåå°å ¥ã (Correct answer)
Correct answer: ããªã¹ãæã®çŠæã匷åããéåœæ¿çãåå°å ¥ã
ææ²»ç¶æ°ã¯ãæ¥æ¬ã®éåœãšæ¥éãªè¥¿æ¬§åãç¹åŸŽãšããæä»£ã§ãããéåœæ¿çã¯ãããã«å ç«ã€åŸ³å·å¹åºã®ä»£è¡šçãªæ¿çã§ãããããªãŒæç£ã®æ¥èªããã£ããã«çµãããè¿ããŸãããããã¯ææ²»ç¶æ°ãåŒãèµ·ãããéèŠãªåºæ¥äºã§ããä»ã®éžæè¢ã¯ãã¹ãŠãææ²»æä»£ã®äžå¿çãªæ¹é©ã§ãã
Question 43: 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
- å°æ¹èªæ²»äœãäŒè°ãéãå Žæã確ä¿ããããã
- å°åã®ç©ºãå®¶åé¡ã解決ããããã
- åã©ããã¡ãå®å šã«éã¹ãå ŽæãæäŸããããã
- 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 44: æ¥æ¬ã®åœäŒã«ããããè¡è°é¢ã®åªè¶ãã«é¢ããèšè¿°ãšããŠãæ£ãããªããã®ã¯ã©ããã
- æ³åŸæ¡ãè¡è°é¢ã§å¯æ±ºåŸãåè°é¢ã§åŠæ±ºãããå Žåããã®æ³åŸæ¡ã¯çŽã¡ã«å»æ¡ãšãªãã (Correct answer)
- æ¡çŽã®æ¿èªã«ã€ããŠãäž¡è°é¢ã®è°æ±ºãç°ãªã£ãå Žåãè¡è°é¢ã®è°æ±ºãåœäŒã®è°æ±ºãšãªãã
- äºç®ã¯ãå ã«è¡è°é¢ã«æåºãããªããã°ãªããªãã
- å é£ç·ç倧è£ã®æåã¯ãè¡è°é¢ã®è°æ±ºãåªå ãããã
Correct answer: æ³åŸæ¡ãè¡è°é¢ã§å¯æ±ºåŸãåè°é¢ã§åŠæ±ºãããå Žåããã®æ³åŸæ¡ã¯çŽã¡ã«å»æ¡ãšãªãã
æ³åŸæ¡ãåè°é¢ã§åŠæ±ºãããŠããè¡è°é¢ãåºåžè°å¡ã®3åã®2以äžã®å€æ°ã§åã³å¯æ±ºããã°ããã®æ³åŸæ¡ã¯æ³åŸãšãªããŸãïŒæ²æ³ç¬¬59æ¡ïŒããããã£ãŠãçŽã¡ã«å»æ¡ãšãªãããã§ã¯ãããŸããããããè¡è°é¢ã®åªè¶ãèªããããŠããç¹ã®äžã€ã§ãã
Question 45: The Tokyo Metropolitan Area (Greater Tokyo) is notable globally for being:
- The oldest continuously inhabited major city in East Asia
- Japan's fastest-growing urban area in terms of population since 2000
- The world's most populous metropolitan area with over 37 million people (Correct answer)
- 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 46: The Sea of Japan coast (Sanin and Hokuriku regions) receives extremely heavy snowfall in winter primarily because:
- Cold, dry Siberian air masses pick up moisture crossing the Sea of Japan before reaching land (Correct answer)
- These regions are located at higher latitudes than the Pacific coast
- Mountain ranges trap Arctic air masses along the Sea of Japan coast
- The Oyashio Current brings warm, snow-generating air masses from the north
Correct answer: Cold, dry Siberian air masses pick up moisture crossing the Sea of Japan before reaching land
Cold, dry Siberian air flows over the relatively warm Sea of Japan in winter, absorbing moisture, and then drops heavy snow when it rises over the coastal mountains of Honshu.
Question 47: From the choices below, choose the statement that correctly describes carbon dioxide assimilation by cyanobacteria, such as Nostoc:
- They produce oxygen by splitting water. (Correct answer)
- They have chloroplasts and perform the same type of photosynthesis as land plants.
- They take up hydrogen sulfide to perform photosynthesis.
- They use a photosynthetic pigment called bacteriochlorophyll.
- They use energy released from the oxidization of inorganic substances such as ammonium ions.
Correct answer: They produce oxygen by splitting water.
Explanation: <br> Cyanobacteria, including Nostoc, are photosynthetic organisms that utilize water as a source of electrons and protons in the process of photosynthesis. During this process, they split water molecules (H2O) to release oxygen (O2) as a byproduct. This oxygenic photosynthesis is similar to that of plants and algae.
Question 48: The graph of the function y = f(x) is translated 3 units to the left and 4 units down. Which of the following equations represents the new graph?
- y = f(x + 3) - 4 (Correct answer)
- y = f(x + 3) + 4
- y = f(x - 3) + 4
- y = f(x - 3) - 4
Correct answer: y = f(x + 3) - 4
A horizontal translation of h units is represented by f(x - h), and a vertical translation of k units is represented by f(x) + k. A translation 3 units to the left corresponds to h = -3, so the term becomes f(x - (-3)) = f(x + 3). A translation 4 units down corresponds to k = -4. Combining these gives the new function y = f(x + 3) - 4.
Question 49: The Seto Inland Sea (Seto Naikai) is an enclosed body of water located between which Japanese islands?
- Honshu, Shikoku, and Kyushu (Correct answer)
- Kyushu and the Ryukyu Islands
- Shikoku and Hokkaido
- Honshu and Hokkaido
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 50: Japan's position on the Pacific Ring of Fire means the country frequently experiences:
- Tornadoes and large-scale dust storms
- Blizzards and polar vortex events
- Earthquakes and volcanic eruptions (Correct answer)
- Hurricanes and severe monsoon flooding
Correct answer: Earthquakes and volcanic eruptions
The Ring of Fire is a zone of intense seismic and volcanic activity where multiple tectonic plates converge; Japan sits at the junction of the Pacific, Philippine, Eurasian, and North American plates.
Question 51: In formal Japanese essay writing, which ending style is expected on the EJU?
- ãã / ããã (conversational style)
- ãã ã / ãã (casual 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 52: What does the expression ããŠããŸã convey in Japanese?
- A conditional statement
- An ongoing action
- A polite request
- Completion of an action, often with regret or an unintended result (Correct answer)
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 53: çç©ã®é²åã®èšŒæ ãšãããçžååšå®ã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- åãç°å¢ã«é©å¿ããçµæãç°ãªãçš®ã®çç©ã䌌ããããªåœ¢è³ªãæã€ããšã
- é³¥ã®ç¿Œãšæè«ã®ç¿ ã®ããã«ãèµ·æºã¯ç°ãªããåããããªæ©èœãæã€åšå®ã
- ããã®å°ŸãŠã骚ã®ããã«ãç¥å ã§ã¯æ©èœããŠãããçŸåšã§ã¯æ©èœã倱ã£ãŠããåšå®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 54: In Japanese, the grammar pattern ããªããã°ãªããªã is used to express which meaning?
- Obligation or necessity (Correct answer)
- Desire
- Permission
- Prohibition
Correct answer: Obligation or necessity
ããªããã°ãªããªã expresses obligation or necessity, equivalent to 'must' or 'have to' in English.
Question 55: In the EJU Japanese listening test, which skill is most directly assessed?
- Reading classical Japanese texts
- Writing kanji from memory
- Understanding spoken Japanese in lecture and conversation settings (Correct answer)
- Translating English passages into Japanese
Correct answer: Understanding spoken Japanese in lecture and conversation settings
The EJU listening test assesses comprehension of spoken Japanese in academic and everyday contexts relevant to university study.
Question 56: åäœäœã§ãã ³âµCl 㚠³â·Cl ã®é¢ä¿ã«ã€ããŠãæ£ããèšè¿°ã¯ã©ããã
- äžæ§åã®æ°ã¯åãã ããéœåã®æ°ãç°ãªãã
- éœåã®æ°ã¯åãã ããäžæ§åã®æ°ãç°ãªãã (Correct answer)
- éœåã®æ°ã¯åãã ããååŠçæ§è³ªã倧ããç°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 57: ååçç©åŠã®äžå¿åçã§ããã»ã³ãã©ã«ãã°ãã«é¢ããèšè¿°ãšããŠãæãé©åãªãã®ã¯ã©ããã
- éºäŒæ å ±ã¯ãDNAããRNAãçµãŠã¿ã³ãã¯è³ªãžãšäžæ¹åã«æµããã (Correct answer)
- éºäŒæ å ±ã¯ãã¿ã³ãã¯è³ªããRNAãçµãŠDNAãžãšäžæ¹åã«æµããã
- éºäŒæ å ±ã¯ãDNAãRNAãã¿ã³ãã¯è³ªã®éãåæ¹åã«æµããã
- 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 58: Which of the following correctly describes the Doppler effect?
- Waves bounce off surfaces
- Waves slow down in denser media
- The observed frequency of a wave changes when the source or observer is moving (Correct answer)
- Waves bend around obstacles
Correct answer: The observed frequency of a wave changes when the source or observer is moving
The Doppler effect is the change in observed frequency due to relative motion between the wave source and the observer.
Question 59: A quadratic equation x² - 5x + 6 = 0 has roots α and β. What is the value of α² + β²?
- 25
- 13 (Correct answer)
- 7
- 11
Correct answer: 13
By Vieta's formulas, α + β = 5 and αβ = 6. So α² + β² = (α + β)² - 2αβ = 25 - 12 = 13.
Question 60: 以äžã®ååç©ã®ãã¡ãäž»ã«ã€ãªã³çµåã«ãã£ãŠåœ¢æãããŠãããã®ã¯ã©ããã
- ã¡ã¿ã³ (CHâ)
- æ°Ž (HâO)
- äºé žåççŽ (COâ)
- å¡©åã«ãªãŠã (KCl) (Correct answer)
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 61: æ¥æ¬ã®è£å€æãæã€ãæ³åŸãåœä»€ãªã©ãæ²æ³ã«é©åãããã©ãããæçµçã«å¯©æ»ããæš©éãäœãšåŒã¶ãã
- éæ²å¯©æ»æš© (Correct answer)
- æ¡çŽæ¿èªæš©
- è¡æ¿æå°æš©
- ç«æ³è£éæš©
Correct answer: éæ²å¯©æ»æš©
æ¥æ¬åœæ²æ³ç¬¬81æ¡ã¯ãæé«è£å€æãçµå¯©è£å€æãšããæ³åŸãåœä»€ãªã©ãæ²æ³ã«é©åãããããªãããæ±ºå®ããæš©éãããªãã¡éæ²å¯©æ»æš©ïŒãŸãã¯éæ²ç«æ³å¯©æ»æš©ïŒãäžããŠããŸããããã¯ãæ²æ³ã®çªäººããšããŠã®åžæ³ã®åœ¹å²ã瀺ããã®ã§ãã
Question 62: Which of the following correctly lists Japan's four main islands?
- Honshu, Kyushu, Shikoku, and Okinawa
- Honshu, Hokkaido, Kyushu, and Okinawa
- Hokkaido, Shikoku, Kyushu, and Sado
- Honshu, Hokkaido, Kyushu, and Shikoku (Correct answer)
Correct answer: Honshu, Hokkaido, Kyushu, and Shikoku
Japan's four main islands are Honshu (the largest), Hokkaido (northernmost), Kyushu, and Shikoku â together forming the core of the Japanese archipelago.
Question 63: 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(7) (Correct answer)
- K(2)L(8)M(8)
- K(2)L(8)M(6)
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 64: The Strait of Malacca is critically important to Japan's economy because:
- Japan's top trading partner, Malaysia, is located directly along this strait
- Japan's largest deep-sea fishing fleets concentrate in these strategic waters
- Most of Japan's oil imports from the Middle East pass through this narrow waterway (Correct answer)
- It is the main sea route connecting Japan directly to American export markets
Correct answer: Most of Japan's oil imports from the Middle East pass through this narrow waterway
The Strait of Malacca, between the Malay Peninsula and Sumatra, is the shortest sea route from Middle Eastern oil fields to Japan, making it a vital chokepoint for energy security.
Question 65: Snell's Law relates which two quantities at the interface between two media?
- The frequencies of the incident and refracted waves
- The amplitudes of the incident and reflected waves
- The speeds of sound in the two media
- The angles of incidence and refraction and the refractive indices of the two media (Correct answer)
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 66: What is the unit of frequency in the SI system?
- Hertz (Hz) (Correct answer)
- Joule (J)
- Newton (N)
- Pascal (Pa)
Correct answer: Hertz (Hz)
Frequency is measured in Hertz (Hz), where 1 Hz equals one cycle per second.
Question 67: Japan's Exclusive Economic Zone (EEZ) is one of the world's largest primarily because:
- International agreements granted Japan expanded maritime rights after World War II
- Japan's four main islands have an exceptionally long combined coastline
- Japan's numerous small islands scattered across the Pacific generate a vast maritime area (Correct answer)
- Japan's EEZ includes territorial claims extending toward Antarctica
Correct answer: Japan's numerous small islands scattered across the Pacific generate a vast maritime area
Under UNCLOS, every island generates a 200-nautical-mile EEZ; Japan's many remote island chains â including the Ryukyu, Ogasawara, and Kuril groups â create one of the world's largest EEZs.
Question 68: A geometric sequence has first term a = 2 and common ratio r = 3. What is the sum of the first 4 terms?
- 162
- 80 (Correct answer)
- 54
- 26
Correct answer: 80
Sâ = a(r⎠- 1)/(r - 1) = 2(81 - 1)/(3 - 1) = 2(80)/2 = 80.
Question 69: 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?
- 20 J
- 10 J
- 40 J (Correct answer)
- 80 J
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 70: 次ã®å çŽ ã®ãã¡ã第äžã€ãªã³åãšãã«ã®ãŒãæã倧ãããã®ã¯ã©ããã
- ãªããŠã (Li)
- ãããªãŠã (Na)
- ã«ãªãŠã (K)
- ããªãŠã (He) (Correct answer)
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 71: If v =â©a,bâª, then a is the ___________ component of v.
- Slope
- Vertical
- Horizontal (Correct answer)
- Parallel
Correct answer: Horizontal
Explanation: <br> If v = â©a,bâª, then a is the horizontal component of v. This is because, in a two-dimensional Cartesian coordinate system, the x-axis represents the horizontal direction. The vector v = â©a,b⪠represents a displacement in the x-axis (horizontal direction) of units and in the y-axis (vertical direction) of b units. Therefore, a represents the displacement in the horizontal direction, making it the horizontal component of v.
Question 72: 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?
- 12° 13â12â
- 80°16â20â
- 10°19Ž20"
- 9°43ÂŽ39.28â (Correct answer)
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 73: If a turtle moves from coordinate P = (3,2) to Q = (5,6). Which vector models the turtle's motion?
- 8,8
- None of the above
- 2,4 (Correct answer)
- -1,5
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 74: What type of wave is sound?
- Electromagnetic wave
- Standing wave
- Transverse wave
- Longitudinal wave (Correct answer)
Correct answer: Longitudinal wave
Sound is a longitudinal wave because the particles in the medium vibrate parallel to the direction of wave propagation.
Question 75: A 4 kg cart moving at 5 m/s collides with a 6 kg cart that is initially at rest. The two carts stick together after the collision. What is their common velocity after the collision?
- 2.5 m/s
- 3 m/s
- 5 m/s
- 2 m/s (Correct answer)
Correct answer: 2 m/s
In a perfectly inelastic collision where objects stick together, total momentum is conserved. The total momentum before the collision equals the total momentum after. The formula is mâvâáµ¢ + mâvâáµ¢ = (mâ + mâ)v_f. Before the collision: p_initial = (4 kg)(5 m/s) + (6 kg)(0 m/s) = 20 kg·m/s. After the collision: p_final = (4 kg + 6 kg)v_f = (10 kg)v_f. Setting p_initial = p_final: 20 kg·m/s = (10 kg)v_f. Solving for v_f gives v_f = 20 / 10 = 2 m/s.
Question 76: Find the component form of a vector whose magnitude is 10 and direction is 150°.
- 10, 150
- 6.99 , -7.14
- 10i + 150j
- -5â3, -5 (Correct answer)
Correct answer: -5â3, -5
Explanation: <br> The correct answer is "<-5â3, -5>". This is the component form of a vector with a magnitude of 10 and a direction of 150 degrees. The first component, -5â3, represents the horizontal displacement of the vector, and the second component, -5, represents the vertical displacement.
Question 77: Approximately what percentage of Japan's total land area is used for agriculture?
- About 50%
- About 30%
- About 12% (Correct answer)
- About 5%
Correct answer: About 12%
Only about 12% of Japan's land is cultivable, due to the dominance of steep mountain terrain, making intensive and efficient farming methods essential.
Question 78: 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 x-axis.
- They are reflections of each other across the origin.
- 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 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 velocity
- Its acceleration
- The horizontal component of its acceleration
- The vertical component of its velocity (Correct answer)
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: 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.
- a â b â c
- b â a â c
- a â c â b
- c â b â a (Correct answer)
- b â c â a
- c â a 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.
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
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- Unanswered questions count as wrong â answer everything
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