Physical Science Chapter 11 Vocabulary

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Across
  1. 4. any action that can change the state of motion of an object
  2. 6. the speed of an object in a particular direction
  3. 8. the friction between moving surfaces
  4. 11. the friction between surfaces that are stationary
  5. 12. pushes and pulls in which the objects touch each other
  6. 14. when the net force on the object is greater than zero
  7. 15. forces that do not require that the objects touch each other
  8. 17. when the forces applied to an object produce a net force of zero
Down
  1. 1. a force that opposes motion between two surfaces that are in contact
  2. 2. substances that are applied to surfaces to lower the friction between them
  3. 3. the rate at which velocity changes over time
  4. 5. a measure of how far an object moves along a path
  5. 7. the change in position of an object
  6. 9. when an object changes position with respect to a frame of reference
  7. 10. one of the four fundamental forces in nature that keeps objects from floating into space
  8. 13. the combination of all of the forces acting on an object
  9. 16. how fast an object moves