Across
- 2. A system in which energy and matter cannot enter or leave.
- 5. Energy resources which you can depend on to provide energy at any time.
- 6. A renewable resource. Waste is burnt but no net CO2 is released.
- 9. Energy resource that will not run out.
- 11. Energy lost (spread out in)to the surroundings that is no longer useful.
- 15. Energy _______ is the same thing as work done.
- 16. The energy stored in bonds between atoms or molecules.
- 17. Energy cannot be created or ______ only transferred.
- 21. Used to reduce wasted energy transfer to heat e.g. put on bearing or chains / gears.
- 23. Fast cars, cyclists etc have this shape to "cut through air" better (reduce drag).
- 24. Type of material used to reduce energy loss by conduction.
- 25. (Two words) Special type of window that has trapped air between two layers of glass.
- 27. Almost all power plants have this part, which creates the electricity by spinning.
- 28. The energy associated with motion.
- 29. Equivalent to Joules per second.
Down
- 1. ______ force = mass x acceleration.
- 3. (Two words). Gas created by burning coal that can cause acid rain.
- 4. The rate of transfer of energy.
- 7. The unit of energy.
- 8. Volcanic regions useful energy resource. Reliable.
- 10. What fraction of the total input energy is converted to useful output energy.
- 12. Most powerful power plant. Expensive, non-renewable, can create dangerous waste.
- 13. Power plant that needs no generator, transfers light energy directly to electrical.
- 14. Energy can be transferred by _____ (e.g. sounds, light).
- 18. The value of the gravitational field strength on Earth in N/kg.
- 19. (Two words) The measure of how well a material transfers heat.
- 20. (Two words). Gas created by burning fossil fuels that can contribute to global warming.
- 22. GPE of water to KE to drive a turbine. Can be used as pumped storage.
- 26. The fuel used in most nuclear power plants.