WORK,POWER,ENERGY

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Across
  1. 4. The energy of motion
  2. 9. It can be in the form of potential energy, kinetic energy, or the sum of the two.
  3. 10. The energy due to the position of something.
  4. 11. If we push down, the load is lifted up. (device)
  5. 12. a wheel on an axle or shaft that is designed to support movement and change of direction.
Down
  1. 1. The total of energy never changes.
  2. 2. force x distance
  3. 3. The ratio of useful energy output over total energy input.
  4. 5. The unit of work
  5. 6. The amount of work done per the time it takes to do it.
  6. 7. joule/second
  7. 8. A device for multiplying forces or simply changing the direction of forces.