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Across
  1. 6. the measured or measurable period during which an action, process, or condition existshas been put.
  2. 8. Force a force that attracts any two objects with mass
  3. 10. with no resistance between a surface or substance and something that is moving along or through
  4. 11. forces When two forces acting on an object are not equal in size
  5. 13. Forces two forces acting on an object are equal in size but act in opposite directions
  6. 15. Acceleration the acceleration of an object in free fall within a vacuum
  7. 16. force that resists the sliding or rolling of one solid object over another.
  8. 18. the rate of change of its position with respect to a frame of reference
  9. 19. stationary is not moving
  10. 21. the amount of space between two things or the state of being far apart.
  11. 22. the object's overall change in position.
Down
  1. 1. strength or energy
  2. 2. the phenomenon in which an object changes its position.
  3. 3. angle of rotation of the vector
  4. 4. Speed when its instantaneous speed has the same value throughout its journey.
  5. 5. property of a body by virtue of which it opposes any agency that attempts to put it in motion
  6. 7. a measure of its resistance to acceleration
  7. 9. rate at which velocity changes with time, in terms of both speed and direction.
  8. 12. the universal force of attraction acting between all matter
  9. 14. a place where someone or something is located or
  10. 17. Acceleration when the object is moving in the positive direction
  11. 19. the rate at which an object covers distance
  12. 20. Laws of Motion(3) when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.