vocabulary crossword puzzle

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Across
  1. 7. In circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve.
  2. 9. The tendency of an object to resist a change in its motion
  3. 12. Law states that the acceleration of an object is equal to the net force exerted on the object divided by the object's mass.
  4. 16. a push or pull on one object by another object that is touching it.
  5. 17. Law that states if the net force acting on an object is zero, the motion of the object does not change.
  6. 18. A contact force exerted on an object.
Down
  1. 1. Any motion in which an object is moving along a curved path.
  2. 2. A principle stating that the total momentum of a group of objects stay the same unless outside forces act on the object.
  3. 3. Forces acting on an object that combines and forms a net force of zero.
  4. 4. Te forces two objects apply to each other.
  5. 5. The gravitational force exerted on an object.
  6. 6. Law states that for every action there is an equal and opposite reaction.
  7. 8. An attractive force that exists between all objects that have mass.
  8. 10. A force that one object applies to another without touching.
  9. 11. the amount of matter in an object.
  10. 13. A push or pull on an object.
  11. 14. The combination of all the forces acting on an object.
  12. 15. A measure of how hard it is to stop a moving object.