energy
Across
- 4. the transfer of energy that occurs when a force is applied over a distance
- 6. remains of ancient organisms that can be burned as an energy source
- 11. the energy that electromagnetic waves carry
- 12. where most all energy comes from
- 13. heat that comes from fire
- 14. two surfaces rubbing against each other
- 15. energy in motion
- 17. comes from variety of sources used mos often for communication
Down
- 1. the total energy an object has
- 2. energy source that has a limited usage
- 3. heat moving through air or water
- 5. type of energy source that cannot be used up
- 7. energy cannot be created or destroyed only transferred
- 8. energy source that is replaced as fast as or faster than it is used
- 9. thermal energy inside the earth
- 10. stored energy
- 16. the ability to cause change