Forces CW 3

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Across
  1. 2. the rate at which velocity changes
  2. 4. another name for the Newton’s first law of motion
  3. 6. states that an object’s acceleration depends on its mass and on the net force acting on it
  4. 9. any object that orbits around another object in space
  5. 10. one of the two factors that affect the force of friction
  6. 13. the tendency of an object to resist a change in motion
  7. 17. states that the force of gravity acts between all objects in the universe that have mass
  8. 19. the overall force on an object when all the individual forces acting on it are added together
  9. 22. the attractive force between objects; the force that moves objects downhill
  10. 23. the SI unit of mass
  11. 24. friction that occurs when one solid surface slides over another
  12. 25. the motion of a falling object when the only force acting on it is gravity
  13. 26. type of surface that produces more friction
  14. 27. states that if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object
  15. 28. a push or pull exerted on an object
  16. 29. type of surface that produces less friction
  17. 30. an English physicist and mathematician famous for his laws of physics
  18. 31. friction that occurs when an object rolls over a surface
  19. 32. the product of an object’s mass and velocity
Down
  1. 1. one of the two factors that affect the force of friction
  2. 3. a force that causes an object to move in a circle
  3. 5. one of the two factors that affect the gravitational attraction between objects
  4. 7. friction acts in the direction _________ to the direction of the object’s motion
  5. 8. the amount of matter in an object
  6. 11. friction that acts between objects that are not moving
  7. 12. a measure of the force of gravity on an object
  8. 14. the rule that in the absence of outside forces the total momentum of objects that interact does not change
  9. 15. a unit of measurement that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
  10. 16. the force that two surfaces exert on each other when they rub against each other
  11. 18. friction that occurs as an object moves through a fluid
  12. 20. states that an object at rest will remain at rest unless acted upon a nonzero net force & an object moving at a constant velocity will continue moving at a constant velocity unless acted upon by a nonzero net force
  13. 21. one of the two factors that affect the gravitational attraction between objects