Force and Motion

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Across
  1. 5. The unit used to express energy.
  2. 9. A number that tells how many times a machine multiples force.
  3. 10. The work done on a machine; The product of the input force and distance force exerted.
  4. 13. The force action in an object equals the object's mass times its acceleration.
  5. 14. Distance traveled per unit time.
  6. 16. A machine made up of more that one simple machine.
  7. 18. A force that opposes motion between two objects that are touching.
  8. 19. The rate at which work is done or energy is transformed.
  9. 20. The speed of an object, in a specific direction.
Down
  1. 1. For every action force, there is an equal and opposite reaction force.
  2. 2. Make work easier for us by allowing us to push or pull over increased distances.
  3. 3. A push or pull exerted on an object in order to change the motion of the object.
  4. 4. If an object is at rest its stays at rest and and object in motion stays in motion unless an unbalanced force acts upon it.
  5. 6. A force attraction between objects that is due to their masses.
  6. 7. A device that helps do work by either overcoming a force or changing the direction of the applied force.
  7. 8. A quantity, usually expressed as a percentage that measures that ratio of work output to work input.
  8. 11. The work done on a machine; The product of output force and distance force is exerted.
  9. 12. The transfer of energy to an object by using the force that causes the object to move in the direction of the force.
  10. 15. A measure of the gravitational force exerted on an object.
  11. 17. A measure of the amount of matter in an object.