Across
- 4. output and input
- 6. This at one end of a lever
- 7. percentage of input work that is converted to output work
- 9. This uses a wheel and rope to change direction
- 10. a rigid bar that is free to rotate or pivot on a fixed point
- 11. the transfer of energy
- 12. allows you to do work easier
- 15. The SI unit of work
- 16. used with an axle
Down
- 1. a ramp that reduces the amount of force required to do work
- 2. power equals work divided by
- 3. the rate at which energy is transferred
- 5. an inclined plane wrapped around a cylinder
- 8. The fixed point in a lever
- 11. two inclined planes put together
- 13. This force allows you to move the machine
- 14. Used with wheels on a car
- 17. increased mechanical advantage saves this