Can you explain how the fan is an example of energy transfer?

Question

This is a hard question and I don't know the answer to it.

Answer 1

The fan on your desk takes energy in the form of electricity out of the wall socket. At the motor this energy is transformed into rotational kinetic energy that moves the shaft and the fan blades around. The shape of the fan blades cutting through the still air transfers energy into the air to make it move also.

There are more energy transfers taking place when that moving air hits your face and makes you feel cooooool.

Answer 2

Going from the fan's input to the fan's output:

Electrical potential energy from the wall enters the fan.

The electrical potential, aka voltage causes current to flow through the motor of the fan, the motor itself is a device that transfers voltage potential energy into kinetic mechanical energy via the rotational force it provides resulting in the motor spinning.

The kinetic mechanical energy of the motor spinning turns the fan blades, where kinetic rotational spinning transfers to a somewhat linear kinetic motion of the air.

pretending that the air is really at a standstill and that the blades only move like gears with the air, then the fan provides linear motion output (air being pushed by the fan blades) from electrical potential energy provided at your wall sockets.

Wall socket --> motor/blades --> air
elec. potential --> rotational kinetic --> linear kinetic

Answer 3

Ok..lets start from the beginning

We start with coal
Coal gets burned(burning coal = thermal energy).
Thermal energy of the coal burning heats up the water, which then rotates the generator(rotating generator = mechanical energy turning into electrical).
The electrical energy goes into your fan and pushes a motor(electrical into mechanical again!)

Thus:
Thermal ->Mechanical ->Electrical->Mechanical+Heat(B/c motors fan gets hot).