Puzzle time

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Across
  1. 2. strength or energy as an attribute of physical action or movement
  2. 3. energy energy which a body possesses by virtue of being in motion.
  3. 5. is a numerical measurement of how far apart objects are.
  4. 8. the curved path of a celestial object or spacecraft
  5. 9. In physics, energy is the quantitative property that must be transferred to a body or physical system a sudden strong and reflective urge or desire to act.
Down
  1. 1. the rate of change of velocity per unit of time
  2. 4. Quantity or matter of the physical body.
  3. 6. an instance of one moving object or person striking violently against another.
  4. 7. the force that attracts a body toward the center of the earth