Chapter 12 Forces and Motion

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Across
  1. 3. kilgram meter per second squared
  2. 6. the product of an objects mass and its velocity
  3. 7. the amount of matter in an object measured by its inertia
  4. 8. a force associated with charged particles
  5. 12. push or pull
  6. 13. ____ force is an attractive force that acts between any two objects
  7. 15. the attraction between any two objects because of their masses
  8. 19. force that opposes the motion of an object
  9. 20. the force of gravity acting on an object
  10. 21. _____ force is a force that continuously changes the direction of an object to make it move in a circle
Down
  1. 1. the powerful attractive force that binds protons and neutrons together in the nucleus
  2. 2. the curved path of an object in free fall after it is given an inital forward velocity
  3. 4. overall forces acting on an object
  4. 5. a powerful attractive force that acts over a short range
  5. 9. ___ friction - force that opposes the motion of an object as it slides across a surface
  6. 10. ___ friction - force that opposes the motion of an object through a fluid
  7. 11. the constant velocity of a falling object when the force of air resistance equals the force of gravity
  8. 14. fluid friction acting on an object moving through the air
  9. 16. the tendency of an object to resist a change in its motion
  10. 17. ___ friction - force that acts on stationary objects
  11. 18. ___ friction - force that acts on rolling objects