MCAT Physics Question 22: Answer and Explanation
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Question: 22
7. Which of the following is a conservative force?
- A. Air resistance
- B. Friction
- C. Gravity
- D. Convection
Correct Answer: C
Explanation:
Gravity is a conservative force because it is pathway independent and it does not dissipate mechanical energy. Air resistance and friction—choices (A) and (B)—are nonconservative forces that dissipate energy thermally. Convection is not a force, but a method of heat transfer, eliminating choice (D).