Physics Terms

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Across
  1. 2. the amount of matter in an object
  2. 5. the measurement of the force of gravity
  3. 7. When forces are equal
  4. 8. When two surfaces rub against each other
Down
  1. 1. Whenever the rate is the same
  2. 3. This equals distance over time
  3. 4. when forces are unequal
  4. 6. The sum of all the forces acting