Forces CW 2

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