Forces

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Across
  1. 1. The upwards force acting on an object than has been pushed underwater.
  2. 4. A force is a push or a _____________.
  3. 6. Opposite poles on magnets are ___________________.
  4. 8. The force responsible for creating tides.
  5. 9. A non-contact force.
  6. 11. The unit used to measure weight.
  7. 13. With an aeroplane drag acts in the opposite direction to this force.
  8. 15. A force that opposes motion.
  9. 17. The force acting upon a boomerang as it flies through the air.
  10. 19. Action forces in one direction cause ___________ forces in the other direction.
  11. 20. Some forces like friction are touching or ___________ forces.
Down
  1. 2. Movement occurs when forces are ______________.
  2. 3. Negatively charged.
  3. 5. Used to decrease friction.
  4. 7. The amount of matter in an object.
  5. 10. A form of drag.
  6. 12. It is the pull of the Earth that gives us ____________.
  7. 14. Friction occurs because surfaces are never completely ____________.
  8. 16. Positively charged.
  9. 18. Like poles on magnets ______________.