Unit 3/4 Review

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Across
  1. 5. a contact force that resist sliding motion
  2. 6. the combined effect of all the forces
  3. 9. a support force
  4. 10. energy in motion
  5. 12. energy at rest
  6. 13. ability to do work
Down
  1. 1. magnetism and gravity
  2. 2. forces acting on an object that combine and form a net force that is not zero
  3. 3. a collection of objects that interact in some way
  4. 4. energy is always transferring or transforming, but energy is not created or destroyed
  5. 5. a push or a pull
  6. 7. forces acting on an object that combine and form a net force of zero
  7. 8. the transfer of energy to an object by a force that makes an object move
  8. 11. an attractive force between any object that has mass