Fundamental Forces
Across
- 5. gravitational, elastic, and chemical are all types of ____
- 8. 1st fundamental force
- 9. 2nd fundamental force
- 12. a type of bomb and energy
- 13. 4th fundamental force
- 14. stable subatomic particle (+)
Down
- 1. a small portion of matter
- 2. collection of protons (+) and neutrons (neutral)
- 3. gravity is a fundamental ___
- 4. the 4 ____ forces
- 6. protons and electrons have positive and negative __
- 7. chemistry is based on chemical ____
- 10. 3d fundamental force
- 11. the weak force is responsible for radioactive ____