work and energy

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Across
  1. 1. _____ friction: that opposes the motion of two surfaces that are not moving relative to each other.
  2. 5. __energy: The energy possessed by an object due to its motion.
  3. 9. Something that is applied in order to reduce friction
  4. 10. ___ friction: The frictional force that exists between a rolling object and the surface it is rolling on.
  5. 11. The change in position of an object, measured from its starting point.
  6. 12. The resistive force that opposes the motion of two surfaces in contact.
  7. 13. The transfer of energy from one object to another as a result of a force acting on an object.
Down
  1. 2. The rate of change of an object's velocity.
  2. 3. ___ energy: The sum of an object's kinetic and potential energies.
  3. 4. ________ energy: The energy possessed by an object due to its position or configuration.
  4. 6. ______ friction-the frictional force that exists in a fluid, such as air or water
  5. 7. _______friction: The frictional force that exists between two surfaces that are sliding against each other.
  6. 8. The rate at which work is done or energy is converted.