Force, Work & Energy Worksheet-9

Force, Work & Energy Worksheet-9

 

True or False

  1. Any object that slides stops after moving a certain distance because of gravity.

  2. A force of friction acts when an object stops.

  3. Any object that slides stops after moving a certain distance because of friction.

  4. A force of friction acts when an object starts moving.

  5. Anything that started moving would never stop, if there was no friction.

  6. Nothing would move, if there was too much friction.

  7. Smoother materials cause less friction.

  8. Rougher materials produce more friction.

  9. A force of friction always acts between the object and the surface.

  10. Glass causes less friction.

 

Answer Key:

  1. False

  2. False

  3. True

  4. True

  5. True

  6. True

  7. True

  8. True

  9. True

  10. True