1. Energy vocabulary

2. energy the ability to do work

3. potential energy stored energy

4. kinetic energy energy in motion

5. thermal energy heat energy

6. conduction Heat transfer through a solid, heat passes from one molecule to the next

7. convection Heat transfer in liquid or gases; warm will rise and cool will fall

8. radiation heat transfers in wafves

9. radiant energy light energy

10. electrical circuit a path electricity flows through

11. conductor material that allows heat or electricity to flow through

12. insulator material that does not allow heat or electricity to pass through easily

13. nuclear energy Most powerful energy. Produced when atoms are split by fusion or fission.

14. mechanical energy energy stored in an object that is either moving or can move

15. wedge simple machine with 2 or more sloping surfaces

16. pulley A wheel with a rope, chain or belt passed over it

17. inclined plane A sloping plank or ramp that makes it easier to move heavy loads

18. screw an inclined plane that twists around a an axis

19. wheel and axle a fixed wheel turning on a rod through its center

20. lever a bar for lifting loads

21. fulcrum the base or pivot on which a lever turns