Physics Crossword Puzzle

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Across
  1. 7. Objects at rest will remain at rest unless acted upon by an outside object.
  2. 8. the unknown in the problem.
  3. 11. Energy transfer through fluid.
  4. 12. Average kinetic energy of a system.
  5. 13. a branch of science that studies the physical changes of matter.
  6. 14. Energy transfer through space.
  7. 15. Energy of position.
Down
  1. 1. indentation of the fabric of space.
  2. 2. letter that represents the variable
  3. 3. branvh of learning that attempts to explain how things work.
  4. 4. Every action has an equal but opposite reaction.
  5. 5. motion with respect of something else.
  6. 6. the variable is measured in.
  7. 9. Energy of motion.
  8. 10. Energy transfer through touch.