Tag: common machines

A screw is a modification of an inclined plane . The threads of a screw are like an inclined plane wrapped around a cylinder.

If we raise an one end of plank than we can use it as inclined plane.

The stair case used by the airline passengers is a modified form of inclined plane.

As slope increases component of weight along inclined plane increases so more effort required to push a load up.

Distance between the successive threads of screw is known as Pitch of screw.

A screw is preferred over a nail to insert into wood because it requires lesser force to insert. Therefore the value of force required to insert a screw in the given question is less than 3 N.

A door knob is an example of simple machine.

Gangplank is a flat surface  whose end points are at different heights. So it is an example of inclined plane.

A Wedge is a triangular shaped tool ,and is a portable inclined plane. It can be used to separate two objects or portion of objects.

A crowbar also called a wrecking bar is commonly used to open a nailed wooden crates or pry apart boards.