Question

Which best describes heat?
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

Answer 1

"Energy that flows from a hot mug of tea to a cold hand."

Heat is the transfer of energy between bodies due to a temperature difference (from hotter to colder), not a form of stored energy like potential or kinetic energy.