Multiple choice

Which of the following is a transfer of chemical energy to thermal energy?

  1. A hairdryer is turned on to dry someone's hair.

  2. An atom is split to increase the temperature of water

  3. A boy eats an apple, which regulates his body temperature.

  4. An ice cube is placed in warm soup and melts.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When a boy eats an apple, his body metabolizes the food, which is a chemical process that releases stored chemical energy. This energy is then converted into thermal energy to regulate and maintain his body temperature.