Renewable Energy

1. Energy generated from flowing or falling water in rivers or dams
5. The SI unit used to measure energy
6. Energy that is not usefully transferred and usually becomes heat or sound
7. Energy that comes from radiation emitted by the Sun and can be captured using panels
8. A measure of how well a device converts input energy into useful output energy
10. Energy source that uses the motion of air to turn large blades and produce electricity
11. A solid fossil fuel commonly used in power stations
13. A machine that converts mechanical energy into electrical energy
18. Energy resource that will eventually run out and cannot be replaced quickly
20. A greenhouse gas released when fossil fuels are burned
21. Able to be used over a long time without being used up
22. Energy that is successfully transferred to perform a desired task
23. Energy that causes little or no environmental pollution
24. The smallest unit of a solar panel that produces electricity
25. The movement of water that can drive turbines in power stations

2. Type of energy resource that can naturally replenish itself over a short time
3. A device that stores energy chemically and releases it as electricity
4. Energy obtained from heat stored beneath the Earth’s surface
9. The process of changing energy from one form into another form
12. A flat device designed to collect sunlight and convert it into electrical energy
14. A rotating machine that is turned by water, steam, or wind to produce power
15. Energy related to the temperature of an object or system
16. Energy possessed by an object because it is in motion
17. Energy stored in an object because of its position or height above the ground
19. Fuel produced from plants or animal waste that can replace fossil fuels