Force and Motion

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Across
  1. 2. measure of the force of gravity on an object
  2. 3. the amount of matter in an object
  3. 5. an object will travel at a constant velocity unless acted upon by an unbalanced force
  4. 8. something that can cause a change in motion; a push or a pull
  5. 12. the force air exerts on a moving object
  6. 13. a region that contains no matter
Down
  1. 1. a force that opposes motion
  2. 4. the force acting on an object is equal to the product of its mass and acceleration: F = ma
  3. 6. a force in one direction results in an equal force in the opposite direction
  4. 7. the speed and direction of a moving object
  5. 9. falling motion caused by the force of gravity
  6. 10. SI unit of force
  7. 11. SI unit of mass