Energy and Motion

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Across
  1. 2. Heat Energy
  2. 3. A force is a push or pull that causes an object to change ____.
  3. 4. ___ forces do not cause a change in direction. They are equal in size.
  4. 6. Type of energy released by chemical reactions
  5. 8. For every action, there is an equal but ________ reaction.
  6. 13. This scientist created the theory of gravity.
  7. 14. Energy that is in motion.
  8. 15. A force that resists the motion of two surfaces that are touching
  9. 16. The law of ____ gravitation states that the force of gravity acts between all objects in the universe.
  10. 18. An ____ force always causes a change in motion.
  11. 19. Energy caused by the movement of electrons
  12. 20. A type of friction you feel when you walk through water.
  13. 21. Gravity is dependent on mass and the ____ from the object.
Down
  1. 1. We use a frame of ____ to tell us that something is moving.
  2. 5. An attractive force that exists between all objects that have mass.
  3. 7. An object at ____ will stay at ____ until an unbalanced force acts on it.
  4. 9. Stored Energy
  5. 10. This is a type of non-contact force used on metal.
  6. 11. Forces have a ___ and a direction.
  7. 12. When a ____ acts on an object, it will cause the object to accelerate.
  8. 17. A force is a push or pull that causes an object to change ____.
  9. 22. The ability to do work.