Introduction to Energy

4. the sum of kinetic and potential energy
6. physical quantity that expresses hot and cold
7. the movement caused within a fluid by the tendency of hotter and less dense material
9. energy of an object due to its mass and speed
12. is the process where energy changes from one form to another
13. the quality of being hot
15. rigid body capable of rotating on a point on itself

1. physical law that states energy cannot be created or destroyed but may be changed from one form to another
2. the process by which heat energy is transmitted through collision
3. energy in form of heat
5. the ability to do work
8. a natural such as coal or gas
10. material that permits a flow of energy
11. energy that travels through waves or electromagnetic waves
14. the rate of doing work