Across
- 4. advantage The number of times that the machine increases an input force.
- 6. efficiency Is a comparison of a machines work output with the work input.
- 8. plane A flat surface set at an angle or an incline with no moving parts that is able to lift objects by pushing or pulling the load.
- 9. A unit of work equal to one unit-meter.
- 13. Force x distance moved in direction of force.
- 14. A simple machine that is an inclined plane that moves.
- 15. output The work done by the machine.
Down
- 1. A type of lever that is a wheel with a groove in its rim, which is used to change the direction or multiply a force exerted by a rope or cable.
- 2. and axle A simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects.
- 3. A device that makes work easier by changing the size or direction of a force.
- 5. A measure of power equal to one Joule of work per second.
- 7. machine A combination of two or more simple machines that operate together.
- 10. A simple machine of that consists of a bar that pivots at a fixed point called a fulcrum.
- 11. A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral.
- 12. The rate at which work is done.
- 14. input The work done on a machine.