physics

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Across
  1. 3. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
  2. 6. an extremely bright star because of a catastrophic explosion
  3. 8. measurement describing the randomness of a system
  4. 9. Scientist who formulated mechanics and calculus
Down
  1. 1. jngekr
  2. 2. measure of how fast an object is
  3. 3. attraction force between objects, bodies, and masses in the universe
  4. 4. effect of a force on rotation
  5. 5. the rate at which charges move in a conductor
  6. 7. quantity of motion