force and friction

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Across
  1. 2. friction always opposes on
  2. 4. measure of the earths gravitational pull
  3. 5. shape special shapes to minimize fluid friction
  4. 7. force force exerted by electrostatic charge
  5. 9. stops or slow down moving objects
Down
  1. 1. push or pull
  2. 2. force attracts iron nickel etc.
  3. 3. reducing friction by applying grease oil or graphite
  4. 6. the amount of matter in an object
  5. 8. friction due to fluids