Forces, Work, & Energy Crossword

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Across
  1. 4. A machine that does work with only one movement of the machine.
  2. 5. The sum of all the forces acting on an object.
  3. 8. The support force exerted by a surface against an object resting on it. It acts perpendicular to the surface.
  4. 9. A resistive force exerted by a fluid (such as air or water) that opposes the motion of an object moving through it.
  5. 10. The ability to cause change.
  6. 14. The attractive force between any two objects that depends on the masses of the two objects and the distance between them.
  7. 15. A ratio showing the output force compared with the input force.
  8. 17. A pulling force transferred to an object through a medium such as a rope or cable.
  9. 18. A force exerted toward the center of a curved path.
Down
  1. 1. Energy that is stored.
  2. 2. The tendency of an object to resist change in its motion.
  3. 3. Energy due to motion.
  4. 6. A push or a pull on an object.
  5. 7. A combination of two or more simple machines.
  6. 11. The force that opposes the sliding motion of two surfaces that are touching.
  7. 12. A set of forces acting on an object so that the net force equals 0 and the object is not accelerating in any direction.
  8. 13. A device that changes the force or increases motion from work.
  9. 16. The measure of energy transfer that occurs when an object is moved over a distance by a force.