THE LAWS OF MOTION

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Across
  1. 2. a force that resists the motion of two surfaces that are touching
  2. 5. a push or pull on an object
  3. 9. forces acting on an object that combine and form a net force of zero
  4. 12. an attractive force that exists between all objects that have mass
  5. 13. a force that acts perpendicular to the direction of motion, toward the center of a curve
  6. 15. the total momentum of a group of objects stays the same unless outside forces act on the objects
  7. 18. forces acting on an object that combine and form a net force that is not zero
Down
  1. 1. Newton's ________ states; when an object exerts a force on a second object, the second object exerts a force of the same size but in the opposite direction
  2. 3. Newton's ________ states that; if the net force of an object is zero, the motion of the object does not change
  3. 4. a force that one object can apply to another object without touching it
  4. 5. the friction between a surface and a fluid
  5. 6. Newton's _______ states that the acceleration of an object is equal to the net force acting on the object divided by the object's mass
  6. 7. the tendency of an object to resist a change in its motion
  7. 8. the gravitational force exerted on an object
  8. 10. any motion in which an object is moving along a curved path
  9. 11. a push or pull on one object by another that is touching it
  10. 14. is the amount of matter in an object
  11. 16. the combination of all the forces acting on an object
  12. 17. opposes the motion of surfaces sliding past each other