Across
- 3. A measure of energy that is used for measuring the amount of energy in food.
- 6. The form in which sound energy moves from one place to another.
- 8. Heated air that is lighter than the surrounding air.
- 10. The movement of thermal energy through liquids and gases.
- 12. The peak of a sound wave where the greatest air pressure occurs.
- 13. A form of energy that results from the attraction of objects that are made of iron.
- 15. Energy stored in a hot object.
- 17. A form of energy that travels as waves from the sun to Earth.
- 18. The basic unit of energy that scientists use.
- 19. Energy stored in a squashed spring.
Down
- 1. The pitch of a sound depends ? of the sound wave.
- 2. Energy stored in a fuel.
- 4. The loudness of a sound depends on the ? of the sound wave.
- 5. The ability to cause a change in matter.
- 7. Energy of a moving object.
- 9. A type of material that tries to prevent the flow of thermal energy.
- 11. A form of energy that results from the attraction between 2 objects.
- 14. A measure of the highness or lowness of a sound.
- 16. Energy stored in the nucleus of an atom.
- 19. A form of energy that travels as waves through the air and some solids and liquids.