10
lesson pretestMultiple Choice

Pretest

Question 10 • Physics I

Val warms up some soup on the stove. Assuming no phase change has occurred, what effect does warming have on the soup?

Answer
A
Its particles have less kinetic energy.
B
Its specific heat increases.
C
Its particles have more kinetic energy.
D
Its specific heat decreases.

Explanation

Warming the soup raises its temperature. Temperature measures the average kinetic energy of a substance’s particles, so the soup’s particles have more kinetic energy. Its specific heat does not necessarily increase or decrease just because it warms.

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