The increase in temperature of the object is an indication of:
Correct answer: B. Increase in the internal energy
- A. Decrease in the internal energy
- B. Increase in the internal energy
- C. Increase in the potential energy only
- D. Decrease in the kinetic energy only
Explanation
Heat, once absorbed as energy, contributes to the overall internal energy of the object. One form of this internal energy is kinetic energy; the particles begin to move faster, resulting in a greater kinetic energy. This more vigorous motion of particles is reflected by a temperature increase.
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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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