Across
- 2. machines that are made of two or more simple machines
- 4. comparison of a machine’s work output and work input
- 7. rate at which work is done
- 10. tell you how many times a machine multipliesforce
- 11. the work done by a machine
- 13. W=Fxd
- 14. a device that helps make work easier by changing the size or direction of a force
Down
- 1. a simple machine that is a straight, slanted surface
- 3. a double inclined plain that moves
- 5. machine consisting of two circular objects of different sizes.
- 6. the unit to express work
- 8. simple machine consisting of a bar that pivots at a fixed point
- 9. the unit to express power
- 11. occurs when a force causes an object to move in the direction of the force
- 12. consisting of a grooved wheel that holds a rope or cable
- 13. the work you do on a machine