Forces and energy

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Across
  1. 3. The ultimate energy source
  2. 9. The greater the mass of an object the __ the gravitational pull between them
  3. 12. Weight is the measurement of the ____ pull
  4. 13. Force that pulls
  5. 14. When an object is pushed together is has what type of force
  6. 17. Force due to action of our muscles
  7. 18. These forces do not need to touch
  8. 19. A____ of energy is something that stores energy
  9. 20. The forces physically touch
Down
  1. 1. Force that pushes
  2. 2. Force can make an object move faster
  3. 4. This energy source will be used up because they cannot be replaced
  4. 5. A force that pulls everything back to earth
  5. 6. The ability to do work
  6. 7. Mass is the measurement of __
  7. 8. Two people are in a tug of war, the rope now has what type of force
  8. 10. This energy source is constantly being replaced and will not be exhausted
  9. 11. Force exerted by a charged body on another charged body
  10. 15. All forces are measured in
  11. 16. Force acting opposite to the direction of motion