Across
- 2. the ability to move or cause a change in matter
 - 4. relative frequency (high/low) of a sound as perceived by a listener
 - 7. (heat) measure of energy of motion in the particles of matter
 - 8. to bounce light or energy off a surface
 - 10. a path that an electric current can follow
 - 12. to bend light
 - 15. repeated back and forth movement
 - 17. form of energy (electromagnetic radiation) that we can see
 - 18. when energy changes from one form to another
 - 19. energy an object has because of its motion
 - 20. combination of potential and kinetic energy
 - 22. kind of energy made by objects that vibrate
 
Down
- 1. when the path along which electric charges normally flow is not complete
 - 3. energy caused by the movement of electrical charges
 - 5. material used to reduce or prevent the transfer of electricity, heat, or sound
 - 6. path that forms a complete loop along which electrical charges can flow
 - 9. stored energy that an object has because of its position or condition
 - 11. when energy moves from one place or object to another
 - 13. material that readily allows electric charges to pass through it and therefore carries electricity well
 - 14. energy stored in matter and released during a chemical reaction
 - 16. to transmit heat or electricity through a material or substance
 - 21. to take in energy
 
