Across
- 1. is one force that causes KE to become lost
- 3. Type of system that is physically impossible on Earth
- 4. Energy Input x Energy Efficiency =______________
- 6. Total Energy - GPE = _______
- 8. Type of system that has a dotted line (energy in/out)
- 10. units for mass
- 13. collision where both KE and momentum are conserved
- 14. total momentum before will equal the total momentum__________.
- 15. means "move" in Latin
Down
- 2. collision where momentum is conserved but KE is dissipated
- 5. an example of a lost energy
- 7. energy based on height
- 9. relationship between mass and GPE
- 11. Output energy will always be _____ than input energy
- 12. what energy efficiency is measured in