Physics 3: Work & Simple Machines Overview
In this unit - we will examine the lever and the inclined plane, and ways to increase the mechanical advantage of each.
Unit 3: Work & Simple Machines
When I am finished with Simple Machines, I Can...
- Mass: the amount of matter in an object.
- Weight: the force of gravity on an object at the surface of a planet.
- Force: a push or pull exerted on an object.
- Input Force: the force you exert on a simple machine.
- Output Force: the force the machine exerts on an object
- Effort Arm: the distance from the fulcrum to the input force
- Resistant Arm: the distance from the fulcrum to the output force / object.
- Simple Machine: A device that makes work easier
- Mechanical Advantage: The ratio of output force to input force.
- Output Force / Input Force
- Ideal Mechanical Advantage: The ratio of the length of the effort arm to the resistant arm of a lever. The ratio of the length of the inclined plane to the height.
- iMA = Effort / Resistance [lever]
- iMA = Length / Height [inclined plane]