Physics

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Across
  1. 3. Object which consist of billions of stars
  2. 4. Object which has a gravity that is that strong even light can't escape
  3. 8. Particle which has no mass
  4. 9. Force which atcs between two bodies with mass
  5. 10. Physical quantity which is decribed through force divided by area
  6. 13. Physical unit that describes temperature
  7. 14. Physical theory that was introduced at the beginning of the 20th century
  8. 15. Scientist who postulated three famous laws named after him.
Down
  1. 1. Electrical element that can be used to create a magnetic field
  2. 2. British Scientist who proposed the radition of black holes
  3. 5. Cosmic body that is mostly found between Mars and Jupyter
  4. 6. Physical unit that decribes the resistance of an electric circut
  5. 7. Scientist who created the theory of relativity
  6. 8. Particle which can be found in the atomic nucleus
  7. 11. Elemental particle that has a negative charge
  8. 12. Weapon that uses the principal of nuclear fission