Year 7 Physics 1

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Across
  1. 2. Waves transfer this
  2. 7. A machine used to display waves visually
  3. 11. The spiral part of an ear where liquid and hairs convert sound into electrical impulses
  4. 12. A ratio that describes the amount of total energy that is transferred usefully
  5. 13. The amount of matter in an object
  6. 15. The Law of Conservation of energy states energy cannot be created or...
  7. 16. The distance between two identical points on adjacent waves
  8. 17. A sound wave is this type of wave
  9. 18. An energy resource formed from dead plants or animals that have been buried for millions of years
  10. 19. The energy store of a moving object
  11. 20. A greenhouse gas that is produced when burning hydrocarbon fuels
Down
  1. 1. The energy store between atoms and molecules such as from bonds, e.g. fuels
  2. 3. Sound travels fastest in a...
  3. 4. There are no particles here...
  4. 5. The number of full waves per second
  5. 6. The pathway through which energy is transferred from a power station to a light bulb
  6. 8. The original source of most energy
  7. 9. If the amplitude of a wave changes, this property of the sound changes
  8. 10. The energy store of an object at a height
  9. 14. The effect when sound waves meet and overlap