What happens when the thermal energy of a substance increases? (A) The motion of the particles in the substance increases, and the temperature of the substance decreases. (B) The motion of the particles in the substance decreases, and the temperature of the substance increases. (C) Both the motion of the particles in the substance and the temperature of the substance decrease. (D) Both the motion of the particles in the substance and the temperature of the substance increase.
Biology · High School · Thu Feb 04 2021
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Answer D is correct
Both the motion of the particles in the substance and the temperature of the substance increase.
Energy will be transferred from the warmer object to the cooler one. The movement of thermal energy from a substance at a higher temperature to one at a lower temperature is called heat. When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises.