sience stidy giude

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Across
  1. 3. A substance used for minimizing friction.
  2. 4. explains that an object in motion will stay in motion at the same speed and direction until another force acts on it.
  3. 7. combination of all forces acting on an object
  4. 10. stated laws that describe the effects of forces on motion
  5. 11. One object pushes on a second object, the second object pushes back on the first with a force that is equal in size and opposite in direction.
Down
  1. 1. that makes motion more difficult between two materials that are in contact because of microscopic hills and valleys on the surfaces of the objects.
  2. 2. A force acting on an object causes the object to speed up in the direction of the force.
  3. 5. measurement of the force that gravity pulls on an object.
  4. 6. Force of attraction between objects.
  5. 8. forces that are equal in size and in opposite direction
  6. 9. push or pull one object exerts on another