Ch 12 Vocab

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Across
  1. 3. a frictional force that acts on rolling objects, caused by the change in shape at the point of rolling contract
  2. 7. the force of gravity acting on an object
  3. 9. a friction force that acts on objects that are not moving
  4. 10. a force that opposes the motion of objects that touch as they move past each other
  5. 11. the attraction between any two objects because of their masses
  6. 14. fluid friction acting on a object moving through the air
  7. 15. a friction force that opposes the motion of an object through a fluid
  8. 16. the curved path of an object in free fall after it is given an initial forward velocity
  9. 17. a friction force that opposes the motion of an object as it slides over a surface
Down
  1. 1. the si unit for force
  2. 2. the product of an object’s mass and its velocity
  3. 4. the overall force acting on an object after all the forces are combined
  4. 5. the tendency of an object to resist a change in its motion
  5. 6. law stating that the total momentum of a system does not change if no net force acts on the system
  6. 8. the constant velocity of falling object when the force of air resistance equals the force of gravity
  7. 12. a push or a pull that acts on an object
  8. 13. the amount of matter in an object; a measure of the inertia of an object, which depends on the amount of matter the object contains