Thermal Energy CW 1

2. an example of a chemical reaction that releases thermal energy, along with light energy
3. The average kinetic energy of the atoms or molecules within a substance.
8. A process that creates new substances from existing substances and can absorb or release thermal energy.
10. machine that converts thermal energy into mechanical energy
13. Water in gas form.
18. a device that regulates the temperature of a system
19. The process when matter loses thermal energy and changes from a gas to a liquid.
20. amount of thermal energy it takes to increase the temperature of 1 kg of material by 1°C
21. Matter in which atoms are constantly moving around and bumping into each other.

1. device that uses electric energy to pump thermal energy from a cooler location to a warmer location
4. Matter in which atoms are closely spaced and vibrate in a fixed position.
5. device that converts electric energy into thermal energy
6. Type of energy that is the energy of motion
7. space that contains little or no matter
9. transfer of thermal energy by the movement of particles from one part of a material to another
11. Type of energy due to motion of atoms or molecules within a substance
12. Matter in which atoms vibrate so much that they are far apart.
14. transfer of thermal energy from one material to another by electromagnetic waves
15. Type of energy that is stored energy
16. transfer of thermal energy between materials because of collisions between particles
17. The transfer of thermal energy from a hotter area to a colder area.