Chapter 8 Vocab
Across
- 5. W=Fxd
- 7. a double inclined plane that moves
- 8. the rate at which work is done.
- 9. a force causes an object to move in a direction of the force.
- 10. is a simple machine consisting of a bar that pivots
- 13. a simple machine consisting of a grooved wheel that holds a rope or cable.
- 14. the work done by a machine.
- 15. the work you do to a machine.
- 16. plane a simple machine that is straight
- 17. MA=output force/input force.
- 20. a comparison of a machines work output with the work input.
- 21. a simple machine consisting two circular object of different sizes.
Down
- 1. ME=work output/work input x 100
- 2. an inclined plane that is wrapped in a spiral.
- 3. used to express work is the Newton-meter.
- 4. P=W/t
- 6. tells you how many times the machine multiplies force.
- 11. the unit used to express power is J/s.
- 12. machines that are made of two or more simple machines.
- 18. a simple machine
- 19. a device that helps make work easier by changing the size or direction of a force.