Chapter 12 Forces & Motion Vocabulary

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Across
  1. 2. a substance or mixture that flows and has no shape of its own
  2. 6. a push or pull that acts on an object
  3. 7. a force associated with charged particles
  4. 9. the product of an object's mass and velocity
  5. 10. an attractive force that acts between two objects
  6. 11. force the overall force acting on an object after all the forces are combined
  7. 14. a friction force that opposes the motion of an object as it slides over a surface
  8. 16. a friction force that acts on rolling objects, caused by the change in shape at the point of rolling contact
  9. 18. the tendency of an object to resist a change in its motion
Down
  1. 1. the curved path of an object in free fall after it is given an initial forward velocity
  2. 3. a force that opposes the motion of objects that touch as they move past each other
  3. 4. the constant velocity of a falling object when the force of air resistance equals the force of gravity
  4. 5. the SI unit for force
  5. 8. a force that continuously changes the direction of an object to make it move in a circle
  6. 12. resistance fluid friction acting on an object moving through the air
  7. 13. the force of gravity acting on an object
  8. 14. a friction force that acts on objects that are not moving
  9. 15. the attraction between any two objects because of their masses
  10. 17. the amount of matter in an object