A screw is a modified form of
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Inclined Plane because a screw is at a angle which looks like an inclined plane.
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incline plane
A screw is a modified form of an inclined plane.
To understand why, let's first look at an inclined plane. An inclined plane is a simple machine that consists of a flat surface that is set at an angle with respect to the ground. It helps to reduce the force required to lift an object by allowing the object to be moved along a longer distance with less force.
Now, imagine taking an inclined plane and wrapping it around a cylindrical rod. This creates a spiral or helical structure, which is known as a screw. The key characteristic of a screw is its helical thread, which forms a continuous groove around its cylindrical body.
The shape of a screw allows it to convert rotational motion (turning) into linear motion (forward or backward motion along the screw). When we apply a turning force to the head of the screw, the inclined plane or helical thread allows the screw to move either into or out of a material, such as wood or metal.
The advantage of using a screw over a simple inclined plane is that it provides a mechanical advantage, making it easier to exert a larger force over a longer distance. This is why screws are commonly used in various applications, such as holding materials together, lifting heavy objects, or creating mechanical systems like gears and engines.