Physics Review

1234567891011121314151617181920
Across
  1. 5. A positron was the first example of ________.
  2. 7. If each fission causes one additional fission you have a ________.
  3. 8. If a machine is 90% efficient where does the missing 10 % go?
  4. 10. The distance light travels in a year.
  5. 12. A ________ consists of everything observable.
  6. 13. Difficulty on passing current is called ________.
  7. 15. Heavy nuclei produce energy by ________.
  8. 18. If it is comfortable to live on it’s a ________.
  9. 19. Magnetic field affect ________.
  10. 20. Electrons/sec = ________.
Down
  1. 1. Currently the objects that we hope are the smallest components of matter are called ________.
  2. 2. AMA accounts for ________.
  3. 3. The simplest (most fundamental) object obtainable by chemical means (pounding, acids, freezing, etc.) is ________.
  4. 4. A generator worked backward would probably act like a ________.
  5. 6. A group of a minimum number of atoms in the same ratio as in the bulk material is a ________.
  6. 9. There are about a hundred different types of ________.
  7. 11. A fuse should be in ________ with the thing it is to protect.
  8. 14. These have a very regular organized structure.
  9. 16. Energy/electron = ________.
  10. 17. If it has 1000000000000 stars it is a ________.