Unit Test — Unit test

Question 11 • ECTC-AL-Chemistry B

Which best describes heat?

Answer

energy that is carried by electric and magnetic fields

energy that decreases as a car slows to a stop

energy that increases as a book is lifted to a higher shelf

energy that flows from a hot mug of tea to a cold hand

Explanation

Heat is energy transferred from a warmer object to a cooler one because of their temperature difference. So energy flowing from a hot mug of tea to a cold hand best describes heat. The other choices describe electromagnetic, kinetic, and gravitational potential energy.

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