ENERGY

5. A change in energy from one form to another.
6. A machine that produces motion, or kinetic energy, from a source of electrical energyelectrical energy A form of energy involving the accumulation or movement of electric charges.
7. energy A form of potential energy stored within a chemical substance that can be released during a chemical reaction.
8. The movement of energy from part of a system to another.
10. The conversion of a liquid (usually water) to a vapour.
12. The conversion of a vapour from the gas to the liquid state (e.g. from water vapour to water droplets).
14. formula is CO2
16. The range of energy types, including light, involving vibrations in electric and magnetic fields: all forms travel at the speed of light through a vacuum.
19. The space around an electric charge where other charges feel a force.
22. circuit A series of devices, connected by electrical conductors: generally involves the transformation of electrical energy to another energy form
24. A meter for measuring electric current flowing through a circuit.
25. A hypothetical fluid proposed as the carrier of heat in the early 19th Century

1. dioxide A chemical present in the atmosphere, at low levels, essential for the building of biological molecules in living things through the process of photosynthesis:
2. A large, rotating air depression bringing wind and rain. The term cyclone is used in Australia, hurricane in countries bordering the Atlantic and typhoon in SouthEast Asia.
3. The process where warm fluids (liquid or gas) rise due to their lower density, carrying heat with them.
4. The situation where a quantity, such as total energy, remains the same during a reaction or process.
7. A type of food molecule comprised of carbon, oxygen and hydrogen atoms (e.g. sugar, starch).
9. A device that transforms stored chemical energy to electrical energy
11. A source of electric current, usually made of metal.
13. The force put into a simple machine, such as a pulley or lever
15. potential energy A form of stored energy where a material has been stretched or compressed
17. Multiple turns of insulated wire used in electric motors, generators and electromagnets
18. diagram A diagram showing the layout and components of an electric circuit.
20. The capacity for something to flow through a physical medium, such as electric current through a wire or heat from one object in contact with another.
21. The capacity to do work or to cause change in a system: a quantity measured in Joules.
23. (electric) Electric current is the flow of electrical charges through a circuit.