Physics Section 5

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Across
  1. 1. / when electromagnetic radiation behaves like a particle it is a_____.
  2. 3. / the small wave length means that _________ can be focused and detected by small antennas.
  3. 6. / Nuclei and electrons make up ______.
  4. 8. / the high _______ per photon means that the photons are easy to detect.
  5. 9. / most convent energy unit for atoms and visible light
  6. 11. / light and it's relatives, from short wave length to long wavelength.
  7. 12. / ________ make up DNA
  8. 13. / h/(mv)
  9. 14. / _______are made up of n and p
  10. 18. / combinations of two neutrons and two protons.
  11. 20. / if we can see it it is ___________.
  12. 22. / generally produced by accelerating charges usually electrons.
  13. 23. / wavelengths range from miles to yards or meters.
Down
  1. 2. / the most successful theory humans know is called _______.
  2. 4. / ________ have the same AN but different numbers of neutrons.
  3. 5. / electrons that come from nuclear events.
  4. 7. / you cannot find out at the same time where a particle is and where it is going to any desired degree of accuracy.
  5. 10. / neutrons and protons are held together by _______
  6. 15. / quarks are held together by _________.
  7. 16. / high energy EMR
  8. 17. / _____ particles can only have certain energy and cannot have zero energy.
  9. 19. / antimatter electrons.
  10. 21. / ________ shares many characteristics of visible light.