CH12 SCIEHCE

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