Energy Crossword

1. Done The energy transferred when a force acts over a distance.
4. Conductivity A material's rate of energy transfer.
7. Equivalent to one joule of work being done in one second.
9. Fuels Coal, oil and gas.
11. Heat Capacity Energy required to raise the temperature of 1kg of a substance by 1°C.
12. System A system that experiences no net change.
14. Energy The store of energy that all moving matter has.
16. of Energy Energy can't be created or destroyed.

1. Energy Energy that isn’t usefully used for the purpose of the system.
2. The unit used for energy.
3. Energy Resource An energy resource that can be replenished whilst it is being used.
5. Potential Energy The store of energy that all raised matter has.
6. Potential Energy energy that stretched or compressed objects experience.
8. The ratio of useful output energy transfer to total energy input.
10. Constant A measure of a spring’s stiffness.
13. A single, or group, of objects.
15. The rate at which energy is transferred, or at which work is done.