Year 7 Physics 1

2. Waves transfer this
7. A machine used to display waves visually
11. The spiral part of an ear where liquid and hairs convert sound into electrical impulses
12. A ratio that describes the amount of total energy that is transferred usefully
13. The amount of matter in an object
15. The Law of Conservation of energy states energy cannot be created or...
16. The distance between two identical points on adjacent waves
17. A sound wave is this type of wave
18. An energy resource formed from dead plants or animals that have been buried for millions of years
19. The energy store of a moving object
20. A greenhouse gas that is produced when burning hydrocarbon fuels

1. The energy store between atoms and molecules such as from bonds, e.g. fuels
3. Sound travels fastest in a...
4. There are no particles here...
5. The number of full waves per second
6. The pathway through which energy is transferred from a power station to a light bulb
8. The original source of most energy
9. If the amplitude of a wave changes, this property of the sound changes
10. The energy store of an object at a height
14. The effect when sound waves meet and overlap