Question

explain lever and it's parts​

Answer 1

Answer:

Levers can be used so that a small force can move a much bigger force. This is called mechanical advantage. In our bodies bones act as lever arms, joints act as pivots, and muscles provide the effort forces to move loads. There are four parts to a lever – lever arm, pivot, effort and load.

Explanation:

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Answer 2

Answer:

There are three parts to all levers: • Fulcrum - the point at which the lever rotates. Input force (also called the effort) - the force applied to the lever. Output force (also called the load) - the force applied by the lever to move the load. There are three types of levers: first class, second class and third class.

Explanation:

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