Across
- 2. is a comparison of a machines work output with the work input
- 4. the unit used to express work
- 9. machines that are made of two or more simple machines
- 10. a simple machine consisting of two circular object of different sizes
- 11. a simple machine consisting of a grooved wheel that holds a rope or a cable
- 12. the unit used to express power is joules per second which is more simply called
- 13. a device that helps make work easier by changing the size or direction of a force
- 14. the work done by a machine
- 15. a simple machine consisting of a bar that pivots at a fixed point
Down
- 1. a simple machine that is straight, slanted surface
- 3. tells you how many times the machine multiples force
- 5. a double inclined plane that moves
- 6. the work you do on a machine
- 7. the rate at which work is done
- 8. an inclined plane that is wrapped in a spiral
- 12. occurs when a force causes an object to move in the direction of the force