Across
- 5. "radios" and astronomical events
- 6. lighter than quarks and nuclei
- 9. Nuclei and electrons make up ____.
- 10. Volt energy unit for atoms and visible light
- 14. sound/ electromagnetic
- 15. Neutrons and Protons make up the ___.
- 16. the total number of positive charge and negative charge
- 18. Subatomic particle with a positive electric charge
- 19. Other combinations of Quarks make up
- 20. My Physics professor calls himself?
- 21. Quarks are held together by ___.
Down
- 1. make up DNA
- 2. generic name for electrons and their relatives mu and tau, and the associated neutrinos
- 3. pass through many materials opaque to light
- 4. number/elements
- 7. high energy EMR
- 8. average energy
- 11. cartoon character JIMMY___.
- 12. light and produce the electrical force
- 13. held together by gluons
- 17. smaller than atoms