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