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