The malleus, incus, and stapes are small bones in the middle ear, connected as compound levers, that transfer sound waves from the eardrum to the oval window of the cochlea.

lever, simple machine used to amplify physical force. All early people used the lever in some form, for moving heavy stones or as digging sticks for land cultivation.

Levers work by reducing the amount of force required to move an object or lift a load. The lowered amount of effort needed is compensated through increased distance over which the force has …

Jul 23, 2025 · In this article, we will learn in detail about types of levers along with their example. We will also learn what is lever and how they are classified using mechanical advantage.

Mar 9, 2022 · Greek mathematician Archimedes was the first to develop lever principles in 260 B.C. A lever system consists of four parts – beam, fulcrum, load, and effort. Beam: A plank …

Aug 26, 2025 · Discover the fundamental principles of levers, how these simple machines operate, and their various configurations in everyday life and engineering.

Dec 8, 2025 · Hi, and welcome to this video on levers! We’re going to discuss what exactly levers are, the physics behind how they work, and what different types of levers exist.

Levers are all around us and are used in countless tools and machines. Here are some more examples of each type of lever and how they are used in everyday life.

LEVER definition: a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third. See examples of lever used in a sentence.

A lever is simply a plank or ridged beam that is free to rotate on a pivot. It is perfect for lifting or moving heavy things. It is a useful simple machine, and you can find them everywhere. Good …