Motion and Forces

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Across
  1. 7. Force created when two opposing surfaces rub against each other.
  2. 8. A net force of 0N means the forces are ________.
  3. 9. Combining all the forces acting on an object. (2 words)
  4. 10. The larger the _____ of the object the greater its gravity.
  5. 14. When calculating deceleration you should always get a _____ answer.
  6. 16. An object that seems to remain still near a moving object: ______ Point
  7. 18. A push or pull on an object.
  8. 19. Type of math one does when calculating distance in triangle.
  9. 20. One way to decrease friction is to add _____ to the object.
Down
  1. 1. The math you do when force arrows are opposite.
  2. 2. Word for strength of a force.
  3. 3. According to Newton both mass and ______ have an effect on gravity.
  4. 4. Forces must be ___________ to move an object.
  5. 5. The further apart two objects are the ______ the gravity between them.
  6. 6. It's calculated by dividing distance by time. (2 words).
  7. 11. Speed in a particular direction.
  8. 12. The force of attraction between objects due to their masses.
  9. 13. Unit of measurement for a force.
  10. 15. First and last name of scientist who studied gravity.
  11. 17. The math you do when force arrows are in same direction.