Physics Concepts

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Across
  1. 1. it's also called law of inertia
  2. 3. it determines how hard it is to stop something from moving.
  3. 6. SI unit for force
  4. 7. SI unit for mass
Down
  1. 1. is a force that goes against motion
  2. 2. law of Newton that relates acceleration and mass
  3. 4. collision for example of two billiard balls
  4. 5. force that is perpendicular to the surface