The pendulum of a certain pendulum clock is made of brass. When the temperature increases, what happens to the period of the clock?
Correct answer: A. It increases
- A. It increases
- B. It decreases
- C. It remains the same
- D. It decreases with the square of temperature
Explanation
When the temperature increases, the length of the pendulum also increases and hence its time period increases.
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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