Energy Crossword

4. of Momentum The rule that says the total amount of motion (momentum) in a collision stays the same, even if energy changes forms.
5. A material, like plastic or rubber, that blocks or slows down the flow of heat or electricity.
7. A small container that stores chemical energy and changes it into electrical energy.
9. A material that is burned to produce heat or power (like gasoline or wood).
11. A machine that changes motion (kinetic energy) into electrical energy.
12. A device that changes electrical energy into light and also gives off heat.

1. A rhythmic back-and-forth movement that carries energy through matter or space (like light or sound).
2. of Electric Charge The rule that says opposite charges (positive and negative) attract, and like charges repel.
3. A material, like metal, that allows heat or electricity to flow through it easily.
4. The complete path that an electric current travels through.
6. A machine with curved blades that spins when pushed by wind, water, or steam.
8. The steady flow or movement of electric charge.
10. of Conservation of Energy The rule that says energy can only change forms, it can never be created or destroyed.