TEAS Practice Test: Video 5 Answers (25 Questions) — Questions and Answers

Question 1: A solution with a pH of 3 compared to a solution with a pH of 5 is:

10 times more basic
100 times more acidic (Correct answer)
2 times more acidic
10 times more acidic

Correct answer: 100 times more acidic

The pH scale is logarithmic — each unit difference represents a 10-fold difference in hydrogen ion concentration. A difference of 2 pH units = 10² = 100-fold difference.

Question 2: What is the name for the minimum amount of energy required to start a chemical reaction?

Enthalpy change
Activation energy (Correct answer)
Heat of reaction
Free energy

Correct answer: Activation energy

Activation energy is the minimum energy required for reactant molecules to overcome the energy barrier and successfully react to form products.

Question 3: Which of the following is an example of a chemical property?

Hydrogen gas is highly flammable (Correct answer)
Water freezes at 0°C
Iron has a shiny metallic luster
The density of gold is 19.3 g/cm³

Correct answer: Hydrogen gas is highly flammable

Flammability describes how a substance reacts with oxygen (a chemical change) — this is a chemical property. The others describe physical properties observed without changing the substance.

Question 4: What is the relationship between pressure and volume of a gas at constant temperature, as described by Boyle's Law?

Pressure and volume are directly proportional (P ∝ V)
Pressure and volume are unrelated at constant temperature
Pressure and volume are inversely proportional (P ∝ 1/V) (Correct answer)
Pressure doubles when volume doubles

Correct answer: Pressure and volume are inversely proportional (P ∝ 1/V)

Boyle's Law states that at constant temperature, pressure and volume of a gas are inversely proportional: as pressure increases, volume decreases (P₁V₁ = P₂V₂).

Question 5: Which of Newton's laws states that an object in motion stays in motion unless acted upon by an external force?

Newton's Law of Universal Gravitation
Newton's Third Law (Action-Reaction)
Newton's Second Law (F = ma)
Newton's First Law (Law of Inertia) (Correct answer)

Correct answer: Newton's First Law (Law of Inertia)

Newton's First Law (Law of Inertia) states that an object will remain in its current state of motion (rest or constant velocity) unless acted upon by a net external force.

Question 6: What type of cell division produces gametes with half the normal chromosome number?

Cytokinesis
Meiosis (Correct answer)
Replication
Mitosis

Correct answer: Meiosis

Meiosis produces haploid gametes with half the chromosome number.

Question 7: Which cellular process releases energy by breaking down glucose in the presence of oxygen?

Fermentation
Aerobic respiration (Correct answer)
Photosynthesis
Transcription

Correct answer: Aerobic respiration

Aerobic respiration breaks down glucose using oxygen to release ATP.

Question 8: How many chromosomes are typically found in a normal human body (somatic) cell?

92
44
46 (Correct answer)
23

Correct answer: 46

Human somatic cells normally contain 46 chromosomes in 23 pairs.

Question 9: Which kingdom includes organisms that are multicellular, obtain nutrients through absorption, and have cell walls made of chitin?

Fungi (Correct answer)
Plantae
Animalia
Protista

Correct answer: Fungi

The kingdom Fungi includes multicellular organisms (most) with chitin cell walls that absorb nutrients from their environment through decomposition or symbiosis.

Question 10: The movement of water across a semipermeable membrane from low to high solute concentration is called what?

Active transport
Diffusion
Osmosis (Correct answer)
Endocytosis

Correct answer: Osmosis

Osmosis is the diffusion of water across a semipermeable membrane.

Question 11: Which of the following is an example of a transitional phrase that shows contrast?

In addition
As a result
Furthermore
On the other hand (Correct answer)

Correct answer: On the other hand

'On the other hand' is a transitional phrase that signals contrast between ideas. 'In addition' and 'Furthermore' add information; 'As a result' shows cause-effect.

Question 12: Which word correctly completes the sentence? 'The hospital policy _____ all visitors to sign in at the front desk.'

requires (Correct answer)
requiring
required
require

Correct answer: requires

'Policy' is the singular subject, requiring the singular verb 'requires' in the present tense.

Question 13: Which sentence correctly uses a comma in a series?

We bought apples, oranges, and pears. (Correct answer)
We bought apples, oranges and pears.
We bought apples oranges and pears.
We bought, apples oranges pears.

Correct answer: We bought apples, oranges, and pears.

Commas separate each item, including before the final conjunction (Oxford comma).

Question 14: Identify the complex sentence.

Because the patient rested, she recovered. (Correct answer)
Resting quietly all day.
The patient rested quietly.
The patient rested and recovered.

Correct answer: Because the patient rested, she recovered.

A dependent clause ('Because the patient rested') joins an independent clause.

Question 15: Which sentence is a run-on?

I studied all night I still failed. (Correct answer)
Because I studied, I passed.
After the exam, we celebrated.
The test was hard, but I passed.

Correct answer: I studied all night I still failed.

Two independent clauses are joined with no punctuation or conjunction.

Question 16: A pharmacy stock of 480 tablets must be divided equally among 6 patients over 4 days. How many tablets does each patient receive per day?

15
20 (Correct answer)
25
30

Correct answer: 20

Total tablets per patient = 480/6 = 80. Per day = 80/4 = 20 tablets per patient per day.

Question 17: Solve for x: 0.5x + 3 = 8.

10 (Correct answer)
2.5
5
11

Correct answer: 10

Subtract 3 to get 0.5x = 5, then divide by 0.5 to get x = 10.

Question 18: Simplify the expression: (3x³)(4x²)

12x⁶
7x⁵
12x⁵ (Correct answer)
7x⁶

Correct answer: 12x⁵

Multiply coefficients: 3 × 4 = 12. Add exponents (same base): x³ × x² = x^(3+2) = x⁵. Result: 12x⁵.

Question 19: Which expression is equivalent to (x + 3)(x - 2)?

x² + x - 6 (Correct answer)
x² - x - 6
x² - x + 6
x² + x + 6

Correct answer: x² + x - 6

FOIL: (x)(x) + (x)(-2) + (3)(x) + (3)(-2) = x² - 2x + 3x - 6 = x² + x - 6.

Question 20: Solve the equation: 5x - 3 = 2x + 9

x = 2
x = 3
x = 4 (Correct answer)
x = 6

Correct answer: x = 4

Subtract 2x from both sides: 3x - 3 = 9. Add 3: 3x = 12. Divide by 3: x = 4.

Question 21: An author writes, "Critics claim the law failed, yet crime fell every year it was in effect." The author's purpose is most likely to:

Describe the law neutrally
Question whether crime data exists
Agree with the critics
Counter the critics with evidence (Correct answer)

Correct answer: Counter the critics with evidence

Presenting declining crime against the critics' claim is meant to counter them with evidence.

Question 22: "The job promised flexible hours, but employees were expected to answer calls at midnight." The contrast implies the word "flexible" was:

Misleading (Correct answer)
A legal requirement
A typing error
Literally accurate

Correct answer: Misleading

Midnight calls contradict the promise of flexibility, implying the term was misleading.

Question 23: An author claims a diet is effective and notes, "Thousands have already tried it." Relying on the number of users as proof is an example of:

Expert testimony
An appeal to popularity (Correct answer)
A controlled experiment
Strong scientific evidence

Correct answer: An appeal to popularity

Citing how many people use something as proof it works is an appeal to popularity, not evidence of effectiveness.

Question 24: Which sentence states an opinion rather than a fact?

The bridge spans 1,200 meters
The bridge was completed in 1998
The bridge is the most beautiful structure in the country (Correct answer)
The bridge carries four lanes of traffic

Correct answer: The bridge is the most beautiful structure in the country

Calling the bridge the most beautiful is a subjective judgment, making it an opinion.

Question 25: Which detail would most strengthen an author's argument that a city is becoming safer?

A resident says it feels safer
More tourists visited last summer
Police records show crime dropped 30% over five years (Correct answer)
The city built a new park

Correct answer: Police records show crime dropped 30% over five years

Documented crime statistics provide direct, measurable support for the claim of greater safety.

TEAS Practice Test: Video 5 Answers (25 Questions)

A solution with a pH of 3 compared to a solution with a pH of 5 is:

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These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

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