The difference between the pump and electric motor

The question is about the relationship between a person riding a bicycle and a bicycle. People and bicycles are not the same type and can't be comparable.

The pump is different from the motor.

Different differences: the pump is the pump, the motor is the motor. Two things that can be completely independent.

But there are many forms: pump driven by hand (the most simple example, can use pressure wells) donkey (e.g., waterwheel) can foot (another waterwheel), can use water potential (such as waterfalls, streams, etc.) can be used in many ways, now commonly used type diesel machine and motor.

A pump is driven by a motor or motor to transform mechanical energy into liquid kinetic energy, while motor is the mechanical energy that electric energy can be converted to load. The pump itself cannot move. It needs motor or motor to drive.