friction

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Across
  1. 1. The property of a surface that resists motion.
  2. 3. The force that acts when an object moves through a fluid.
  3. 6. The force pressing two surfaces together, increasing friction.
  4. 8. A type of friction that acts on an object at rest.
Down
  1. 2. The frictional force experienced when two surfaces slide over each othe
  2. 4. The friction that occurs between a wheel and the surface it moves on.
  3. 5. The force that opposes motion between two surfaces in contact.
  4. 7. Friction generates this form of energy when two surfaces rub together.