ATI TEAS 7
physics
1. How does the potential energy of an object change when it is compressed?
- A. Potential energy decreases
- B. Potential energy increases
- C. Potential energy remains constant
- D. Potential energy becomes zero
Correct answer: b
Rationale: When an object is compressed, it stores potential energy due to its altered position or configuration.
2. Which statement BEST summarizes the author's perspective on bioremediation for plastic pollution?
- A. It is the only viable solution to the problem and should be prioritized.
- B. It is a promising approach but requires further research and development.
- C. It is less effective than traditional methods and poses environmental risks.
- D. It is irrelevant to the problem and will not make a significant impact.
Correct answer: B
Rationale: The passage acknowledges the potential of bioremediation while highlighting the need for further research, indicating a balanced perspective.
3. You test a new fertilizer on two groups of plants, one with fertilizer and one without. Both groups grow at the same rate. What is the most likely explanation?
- A. The fertilizer has no effect on plant growth.
- B. The control group accidentally received some fertilizer too.
- C. Both groups received other nutrients from the soil, negating the fertilizer's effect.
- D. The test period was too short to observe any difference.
Correct answer: C
Rationale: A true control group should be identical to the test group except for the variable being tested. If both groups grew the same despite the fertilizer, it suggests external factors like soil nutrients masked any potential fertilizer effect.
4. A car accelerates from rest. What happens to its kinetic energy and work done on it?
- A. Both kinetic energy and work done increase
- B. Kinetic energy increases, but work done remains constant.
- C. Work done increases, but kinetic energy remains constant.
- D. Both kinetic energy and work done remain constant.
Correct answer: A
Rationale: During acceleration, the car's speed increases, leading to rising kinetic energy. Simultaneously, the force applied to accelerate the car does work on it, increasing the work done.
5. What is the relationship between the wavelength (λ) and frequency (f) of a wave with a constant speed (v)?
- A. λ = v / f
- B. λ = f / v
- C. λ = vf
- D. λ is independent of f and v
Correct answer: A
Rationale: The relationship between wavelength (λ), frequency (f), and speed (v) of a wave is given by the formula λ = v / f. This formula is derived from the wave equation v = fλ, where v is the speed of the wave, f is the frequency, and λ is the wavelength. By rearranging the equation, we get λ = v / f, indicating that the wavelength is inversely proportional to the frequency when the speed of the wave is constant.
6. How do you spell the past participle of the verb "lie" (to recline)?
- A. lied
- B. lain
- C. lay
- D. lying
Correct answer: B
Rationale: The past participle of "lie" (to recline) is "lain," not "lied," which is the past tense.
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