Across
- 4. energy cannot be created or destroyed, it just changes form.
- 7. anything that has mass and takes up space
- 8. the amount of space something takes up
- 10. The ability to do work. (Cause change)
- 12. how much matter something has. It never changes
- 13. energy that is stored and ready to do work
Down
- 1. to limit the amount of energy used, to save or use wisely
- 2. energy in motion
- 3. a measure of gravity's pull on an object
- 5. once in motion, an object stays in motion until it is stopped by an outside force
- 6. the movement of one object against another. Friction always creates heat energy.
- 9. change from one form to another
- 11. the speed and direction of an object