Physics

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Across
  1. 3. Pushing or pulling an object
  2. 6. It is a group of stars and planets
  3. 9. It is a moving of many electrons in one direction
  4. 12. The most smallest part of the materials
  5. 13. He had discovered a gravitation
  6. 14. It is a force
Down
  1. 1. Work which has been done in per second
  2. 2. Smth. that you use for correct eyesight vision
  3. 4. Measurment of how much energy can body contain
  4. 5. Is a beam of electromagnetic energy
  5. 7. Used to see objects which are far way
  6. 8. Describes the hottest or coldness of an object
  7. 10. Protons and neutrons
  8. 11. It is a line which has a beginning and direction
  9. 15. It is a very hot spher