Across
- 3. The unit for power
- 7. The unit for energy
- 9. Raising the temperature of 1kg by 1 degree
- 12. This states that energy cannot be created or destroyed
- 13. No energy can enter or leave the system
- 15. Coal, oil and gas
Down
- 1. The way a spring will stretch each time it is used
- 2. The higher up you are, the more of this you have
- 4. Another term for movement
- 5. And energy source that will not run out
- 6. Is equal to force x distance
- 8. Energy that is not converted into a useful form
- 10. Energy Amount of energy transferred every second
- 11. Another word for heat
- 14. percentage of useful energy output from the total energy input