things that were covered after the last test we took

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Across
  1. 4. an ___ is any device where a low power input controls a higher power output
  2. 5. a ___ is the lightest particle with a positive charge
  3. 7. atoms exist, hydrogen spectra, and the periodic table are all ___
  4. 9. ___'s 1920 uncertainty principle
  5. 11. in mid 1930 ___ predicted that nuclear force would be carried by particles and flipped between protons and nucleus
  6. 13. Pauli suggested that maybe there is a(n) ___ particle
  7. 15. P type has a ___ charge
  8. 16. in the spectrum chart D stands for ___
  9. 18. positrons travel backwards in time and bounce off ___ rays causing them to then travel forward in time
  10. 19. in the spectrum chart F stands for ___
Down
  1. 1. strong, nuclear, electromagnetic, and weak are all types of ___
  2. 2. in the spectrum chart S stands for ___
  3. 3. De ___ said particles have wave properties
  4. 4. Anderson observed ___ at Caltech in 1932
  5. 6. ___ are electrically neutral
  6. 8. N type has a ___ charge
  7. 10. neutrinos have no ___ charge
  8. 12. in the spectrum chart P stands for ___
  9. 14. ___ can go right through each other and cancel each other
  10. 16. who went looking for neutrinos from the sun
  11. 17. ___ machines have no power supply and give more force out than in