Energy

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Across
  1. 3. The SI unit of work and all other forms of energy
  2. 7. A type of lever that is a wheel with a groove in its rim
  3. 8. The ratio of useful energy output to total energy input to total energy input
  4. 11. the ratio of output force to input force for a machine
  5. 12. The property of an object or a system which enables it to do work
  6. 13. Energy of position, usually related to the relative position of two things
  7. 14. Energy cannot be created or destroyed
  8. 15. A simple machine, made of a bar that turns around a fixed point
Down
  1. 1. The product of the force on an object and the distance
  2. 2. The energy due to the position or the movement of something
  3. 4. Rate at which work is done or energy is transformed
  4. 5. The pivot point of a lever
  5. 6. A device for increasing or decreasing a force
  6. 9. Energy of Motion
  7. 10. The SI unit of power