Newton's Laws of Motion

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Across
  1. 3. the force of gravity of an object at the surface of a planet
  2. 6. the force that attracts something toward the center of the earth
  3. 7. the force applied in one direction is greater than the force applied in the opposite direction
  4. 8. point representing the mean position of the matter in a body
  5. 12. forces that are equal in size and opposite in direction
  6. 15. the force that one surface exerts on another when the two surfaces rub against each other
  7. 16. energy that an object has due to its motion
  8. 17. the distance an object travels per unit of time
  9. 20. stored energy that results from the position or shape of an object
  10. 21. speed in a given direction
Down
  1. 1. the tendency of an object to resist any change in its motion
  2. 2. unit of measurement for momentum
  3. 4. moving from one position to another
  4. 5. the space between two things
  5. 9. an imaginary line around which an object rotates
  6. 10. strength or energy as an attribute of physical action or movement
  7. 11. the product of an object's mass and velocity
  8. 13. a change in velocity
  9. 14. the resistance that one surface or object encounters when moving over another
  10. 18. the state in which one object's distance from another is changing
  11. 19. the quantity of matter in a physical body