Science - Physics Revision

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Across
  1. 1. A way of transferring energy from hot substances to cold ones.
  2. 3. potential energy A name used to describe energy when its stored in objects in high places that can fall down.
  3. 5. A force between 2 objects that are touching. It usually acts to slow things down or prevent movement.
  4. 6. forces When 2 forces on an object are the same strength, but in opposite directions its caused by friction.
  5. 8. energy A name used to describe energy when its stored in chemicals. Food, fuels and batteries all stored chemical energy.
  6. 9. force The difference between forces in 2 opposite directions
  7. 12. The amount of force with which gravity pulls something towards the Earth. Its measured in newtons (N).
  8. 13. A way of transferring energy by waves.
  9. 15. fuels A fuel from the remains of a dead organism over millions of years.
  10. 16. To change speed.
  11. 17. resistance A force that slows things down that are moving through water. It is caused by friction and by the object pushing the water out of the way.
  12. 18. Another name for air resistance or water resistance
Down
  1. 2. potential energy a name used to to describe energy when its stored in stretched or squashed things that can change back back to their original shapes.
  2. 4. forces When 2 forces acting in opposite directions on an object are not the same strength they change the motion of objects.
  3. 7. A way of transferring energy through wires.
  4. 10. A force that pushes things up in liquids and gases
  5. 11. A gas or liquid
  6. 14. Change of shape.
  7. 16. resistance A force that slows things down that are moving through air