P1A - Revision
Across
- 2. The National ... transports electricity from power stations to our homes.
- 5. The unit of energy.
- 7. If you bury a power cable you need a ... system installed.
- 8. Objects cool faster if they have a larger surface ...
- 10. In a power station, the steam turns a ...
- 11. This renewable energy relies upon heat in the Earth.
- 13. This type of energy is stored.
- 14. These surfaces reflect heat well.
- 16. = (useful energy / input energy) x 100%
- 20. In this diagram waste energy points downwards.
- 22. Heat transfer through a liquid.
- 24. c = specific heat ...
- 25. Sweating and evaporation ... the body.
- 26. When a solid is heated, the particles will ...
Down
- 1. In the equation E = P x t, the P stands for...
- 3. The lower the U-value, the better the ...
- 4. Burning fossil fuels releases carbon ...
- 6. Thermal is another name for this energy.
- 9. Dark colours ... heat.
- 12. This renewable energy needs a dam and stored water.
- 13. Heat transfer through a solid.
- 15. Coal, natural gas and ... are fossil fuels.
- 17. In this state of matter the particles move the fastest.
- 18. The time it takes to save as much money as the insulation cost to install is called the .... time.
- 19. A transformer changes ...
- 21. Electricity companies measure time in h, energy in kW and power in ...
- 23. Metals are good conductors because they have many free (or delocalised) ...