When the output force is divided by the input force a ____ is created?
Work and Simple Machine
| A | B |
|---|---|
| lever | simple machine consisting of a rigid rod or plank that pivots or rotates about a fixed point called the fulcrum |
| mechanical advantage | number of times the input force is multiplied by a machine; euqal to the outpout force divided by the input force |
| output force | force exerted by a machine |
What is input force and output force?
The input force that you use on an inclined plane is the force with which you push or pull an object. The output force is the force that you would need to lift the object without the inclined plane.
What is the ratio of work output divided by work input?
Mechanical efficiency is the ratio of work output to work input of a machine.
What happens to the mechanical advantage of a machine if the output force is equal to the input force?
A machine will have a mechanical advantage of 1 if the input force and the output force are equal. This occurs when the machine changes the direction of force but not the distance over which the force is applied. Compare mechanical advantage to ideal mechanical advantage.
Is the output force acting in the same direction as the input force?
If only the direction changes, input force will be the same as the output force. The mechanical advantage will always be 1.
What is an example of output force?
The upward force the board exerts on the load is the output force. Examples of levers include: pliers, a wheelbarrow, and the human biceps and forearm. All levers include a stiff structure (the lever) that rotates around a fixed point called the fulcrum.
What is output force?
Output force is the force exerted on an object by a simple machine.
How do input force and output force relate to each other?
The input force that is applied to a lever and the output force are related to the lengths of the input and output arms. When the input and output arms are the same length (because the fulcrum is in the middle of the lever), the input and output forces are the same.
What is input work and output work?
Work input is work done on a machine to get the desired output. Work output is the amount of desired work that is done by a machine.