Across
- 4. ? heat capacity amount of energy needed to raise the temp of 1kg by 1C
- 6. force x distance
- 11. energy transfer to the environment
- 13. useful energy output/total energy input
- 16. type of potential energy when objects are moved upwards
- 18. trapped air stops this type of heat transfer
- 19. mass x gravitational field strength
- 21. type of insulation surrounding a hot engine
- 22. a poor conductor of heat
Down
- 1. another word for movement energy
- 2. unit of energy
- 3. rate at which work is done or transferring energy
- 5. another word for stored energy
- 7. type of stored energy in springs
- 8. unit of power
- 9. ? of energy, energy cannot be created or destroyed
- 10. reduces friction in moving parts of a machine
- 12. energy that will not run out
- 14. type of wall insulation
- 15. renewable energy from hot rocks
- 17. unit of force
- 20. renewable resource from the sun
- 21. energy produced by the moon