PHYSICS

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Across
  1. 1. amount of a matter
  2. 3. a stopping force
  3. 4. Attractive force
  4. 8. photons are in form
  5. 11. moving energy
  6. 12. Newton's first law
Down
  1. 2. velocity to the time taken
  2. 5. missilean of India
  3. 6. measure of mass with gravity
  4. 7. number of protons
  5. 9. measure of the distance to the time taken
  6. 10. natural satellite