Simple Machines
Across
- 5. The ability to not be effected by something
- 8. Number that represents the strength of the force
- 9. A rigid bar to exert a pressure or sustain a weight t one point and turning on a fulcrum at a third
- 10. Type of pulley where force directions stay constant
- 12. Ratio of the magnitude of the resistance and effort forces (abbreviated)
- 13. Simple machine that is an inclined plane wrapped around a cylinder and a wheel and axle used to create rotary motion
- 14. Type of pulley that changed direction of force
- 15. Distance between threads on a screw
- 16. Ratio of distance traveled by effort and resistance force (abbreviated)
- 18. A lever arm fixed to a shaft, called an axle
- 19. the turning effect of a force about a point equal to the magnitude of the force x perpendicular distance to line of action from the force distance x force
- 20. Work=____xDistance
Down
- 1. Lever consisting of a wheel with a groove in its rim that is used to change the direction and magnitude of a force exerted by a rope or cable.
- 2. a flat surface set at an angle with no moving parts. Able to lift objects by pushing or pulling
- 3. Ratio of force magnitudes (abbreviated)
- 4. functions as a moving inclined plane used for splitting, raising heavy things or tightening by being driven into something
- 6. Mechanisms that manipulate magnitude of force and distance
- 7. Number of simple machines
- 11. Ratio of useful energy output to total energy input
- 17. Force applied on an object times distance the object travels parallel to the force force x distance