Question | Answer |
Advantage | A benefit obtained by using a simple machine to help you do work.. |
Lever | A simple machine that people use to gain a mechanical advantage to make work easier. |
Pulley | A wheel with a grooved rim in which a rope/wire can run to change the direction of the pull (force) while lifting the load. |
Movable Pulley | Has a wheel that is attached to the load and the moveable pulley gives a mechanical advantage. |
Fixed Pulley | Has a wheel that is attached to something above the load and the fixed pulley gives a directional advantage.. |
Newtons | The unit of measurement for effort. |
Simple Machines | Basic devices that provide mechanical or directional advantages. |
Work | When a force acts on something over a distance either to LIFT or to overcome resistance. |
What are 2 ways a simple machine can provide an advantage? | 1) Move a load
2) Make a load easier to lift |
What are the 6 simple machines? | 1) Lever
2) Pulley
3) Wheel and Axle
4) Inclined Plane
5) Screw
6) Wedge |
What is the best setup on the lever to have the best advantage? | When the fulcrum is placed in between the load and the effort. |
What is the best setup on the pulley to have the best advantage? | Single fixed/single moveable |
Label the parts of the lever and draw them in the positions that give the most advantage and the least effort | Class 1 Lever System |
What are the 4 pulley systems? | 1) Single fixed/single moveable *pulling down
2) Single fixed/single moveable *pulling up
3) Single fixed pulley *pulling down
4) Single moveable pulley *pulling up |