Across
- 3. family of simple machines that includes the lever, pulley, and wheel and axle
- 7. measures the rate at which work is done
- 8. a lever(wheel) connected to a rod(Axle) and move together
- 10. examples are broom, bat, and racket
- 12. an IP wrapped around a cylinder
- 14. family of simple machines that includes the inclined plane, wedge, and screw
- 16. used to calculate work; units are meters
- 17. a grooved wheel(lever) fitted with a rope and changes direction of input force
- 18. helps us do work by redistributing the work
Down
- 1. used to calculate work together with power; units are seconds
- 2. the transfer of energy to a body by a force that causes the body to move in the direction of the force
- 3. examples are seesaw, paint can opener, and scissors
- 4. used to calculate work; units are Newtons
- 5. examples are wheelbarrow and bottle opener
- 6. can tell us if a machine is helpful or harmful
- 8. 2 IPs back to back that turn 1 input force into multiple output forces
- 9. the units of work
- 11. work is _______
- 13. the units of power
- 15. a slanted surface that extends the length of travel