Key Stage 3 Energy

4. potential Energy stored in an object lifted above the ground
6. When energy moves from one store to another
8. The principle that energy cannot be created or lost
10. The unit used to measure energy
11. Energy stored in fuels, food, or batteries
13. potential Energy stored in stretched or compressed objects
14. Describes energy that is not usefully transferred, often turned into heat
15. Energy an object has because of its motion
17. Energy cannot be this — it can only be transferred or stored
19. When energy is spread out or lost, often as heat, into the surroundings
20. A force that converts kinetic energy into thermal energy
22. Transfer of energy from a hotter object to a colder one

1. Transfer of energy as waves, like light or infrared
2. Transfer of energy by a force causing movement
3. A place where energy is kept before it is transferred
5. The action that often results from energy transfer
7. Transfer of energy through wires by electric current
9. A material that does not allow energy to flow through it easily
12. The energy of a moving object
16. A material that allows energy, especially thermal energy or electricity, to flow easily
18. Energy that is stored and available to do work
21. Energy stored in a hot object