Question

Define an ideal machine with reference to a machine?

Answer 1

Definition

• A machine whose parts are weightless and frictionless, such that whatsoever is the energy spent on it, same is the energy produced by it, it is called an ideal machine
• The ideal machine is also called a perfect machine.

Explanation

• It is not possible to have an ideal machine because there cannot be a machine, whose parts are weightless or frictionless.
• However, if we take the view that energy spent on a machine is overcoming resistance, is in a way very useful, then any machine can be called a perfect machine or an ideal machine.