Unit 2 Terms: Forces and Motion

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Across
  1. 4. for every action, there is an equal and opposite reaction
  2. 6. objects that are pushing against each other
  3. 8. the combination of all of the forces acting on an object
  4. 9. force that resists the initiation of sliding motion between two surfaces
  5. 12. the total amount of momentum in an isolated system is conserved
  6. 14. objects do not touch each other
  7. 15. the unbalanced force acting on an object equals the object's mass times it's acceleration
  8. 16. an object at rest remains at rest and an object in motion maintains its velocity unless it experiences a net force
  9. 19. the constant velocity of a falling object
  10. 20. a force that opposes motion between two surface
Down
  1. 1. rounded object rolling over a flat surface
  2. 2. force that opposes the movement of two surfaces
  3. 3. vary widely in strength and the distance over which they act
  4. 5. action that can change the state of motion of an object
  5. 7. objects slide past each other
  6. 10. a quantity defined as the product of the mass and velocity of an object
  7. 11. a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses
  8. 13. resist a change in motion unless an outside force acts on the object
  9. 17. a measure of the gravitational force exerted on an object
  10. 18. the motion of a body when only the force of gravity is acting on the body