ATI TEAS 7
physics
1. Which property of a substance measures the amount of matter per unit volume?
- A. Density
- B. Mass
- C. Weight
- D. Volume
Correct answer: a
Rationale: Density is the property that measures the amount of matter (mass) per unit volume of a substance. It is calculated as mass divided by volume.
2. Identify the adverb in the following sentence: The patient waited anxiously for the doctor's news.
- A. waited
- B. anxiously
- C. doctor's
- D. news
Correct answer: B
Rationale: Adverbs modify verbs, adjectives, or other adverbs. In this sentence, "anxiously" describes how the patient "waited".
3. What is the product of the complete combustion of propane (C3H8)?
- A. CO2
- B. CO
- C. CH4
- D. C
Correct answer: a
Rationale: Complete combustion of hydrocarbons produces carbon dioxide (CO2) and water.
4. Muscle soreness after exercise is often caused by microscopic tears in muscle fibers. This is called
- A. Atrophy
- B. Hypertrophy
- C. Dom (Delayed Onset Muscle Soreness)
- D. Spasm
Correct answer: C
Rationale: Muscle soreness after exercise is commonly caused by microscopic tears in muscle fibers, leading to a condition known as Delayed Onset Muscle Soreness (DOMS). Atrophy refers to the shrinking of muscle due to inactivity or lack of use, which is not the cause of muscle soreness after exercise. Hypertrophy is the increase in muscle size through exercise, not related to muscle soreness. Spasm is a sudden, involuntary muscle contraction unrelated to the micro-tears that cause muscle soreness. Therefore, the correct answer is C, DOMS, as it specifically addresses the micro-tears in muscle fibers that result in post-exercise soreness.
5. Define "acceleration" in terms of motion.
- A. Change in velocity over time
- B. Speed in a straight line
- C. Distance covered in a given time
- D. Force applied to an object
Correct answer: a
Rationale: Acceleration measures the rate of change of velocity with respect to time.
6. Which word is most closely associated with the adjective "ambiguous"?
- A. Precise
- B. Vague
- C. Definite
- D. Straightforward
Correct answer: B
Rationale: "Ambiguous" implies uncertainty or multiple interpretations, making "vague" its closest synonym.
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