Across
- 3. energy that moves in waved through substances
- 4. how heat moves through a substance
- 7. distance times speed
- 9. pressure built up inside a cell
- 12. another word for a ramp
- 16. a straight bar moving on a fixed point
- 17. a wheel that turns on a post or axle
- 18. energy that comes from heat beneath the surface
- 19. energy stored in bonds of atoms or molecules
- 20. a machine with few or no moving parts
- 23. energy stored in the nucleus of an atom
- 25. energy that transfers in waves
- 27. what force is measured in
- 29. energy that transfers in liquids or gases
Down
- 1. distance divided by time
- 2. energy from the movement of atoms and molecules / heat
- 4. the movement of heat from one substance to the other
- 5. what distance is measured in
- 6. a energy source that will run out in the future
- 8. two or more simple machines put together
- 10. energy in motion
- 11. energy from the sun
- 13. what work is measured in
- 14. a simple machine using a wheel and rope to lift a load
- 15. stored energy
- 21. what force is overcome when a pulley lifts a load
- 22. a push or a pull
- 24. energy that transfers in direct touch
- 26. an example of a wedge
- 28. when a force changes the motion of an object