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Simple Machines - Coggle Diagram
Simple Machines
Levers
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When the lode is closer to the fulcrum, then it has less effect on the lever.
For example, if a 10 kg block is kept 2 cm away from the fulcrum and on the other side a 5 kg block is kept. 4 cm away from the fulcrum, the two should balance out.
Also, when trying to balance to sides with the exact same mass, keep in mind that they also have to be the exact same distance away from the fulcrum to balance.
Examples of levers are seesaws, scissors, etc.
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Mechanical Advantage
Mechanical Advantage (MA) is how much easier the simple machine makes lifting or moving an object or how much a simple machine multiplies the force that we exert.
The bigger the effort arm, the more the mechanical advantage.
You can calculate the mechanical advantage by calculating the length of the effort arm upon the length of the load arm (L. arm / E. arm)
Another way to calculate the mechanical advantage is load upon effort or output force upon input force
Pulleys
A basic pulley comprises of a wheel on a fixed axle, with a groove along the edges to guide a rope or cable
Examples of pulleys are used in elevators, wells, cranes, etc.
The more the wheels, the easier it is for a load to be lifted using a pulley. This is because the distance the load is distributed over increases, thus also increasing the mechanical advantage.
Simple machines are basic tools that help in making our lives, and the tasks that we do, easier, by reducing the amount of energy that we have to put in.