Efficiency

Definition

Efficiency refers to how effectively a system or process converts input energy into useful output energy without wasting any energy as heat or other forms of loss. It is often expressed as a percentage.

Related terms

Work: Work is defined as the transfer of energy that occurs when a force acts upon an object and displaces it in the direction of that force.

Power:

Power measures how quickly work is done or how fast energy is transferred. It can be calculated by dividing work by time.

Mechanical Advantage: Mechanical advantage quantifies how much a machine multiplies input force or changes its direction to make work easier. It compares output force with input force.