Mechanical energy
electrical
Yes
Well, isn't that a lovely question! When a refrigerator motor is running, it's using electrical energy to create movement, so that's actually kinetic energy in action. Just like when we paint with gentle brushstrokes, the motor hums along, transforming one form of energy into another to keep our food fresh and cool.
If 92 J of electrical energy are converted into 92 J of mechanical energy in an electric motor, then all of the electrical energy is being converted into mechanical energy. No thermal energy is being produced in this scenario. The efficiency of the motor in this case is 100%, meaning all the input energy is being converted into useful work without any energy loss in the form of heat.
Mechanical energy is produced from the rotation of the fan blades as they move the air. Additionally, there may be some heat energy generated as a result of friction and resistance within the fan motor.
A motor transfers electrical energy into mechanical energy.
Mechanical energy
The form of energy produced from the motion of molecules within an object is called thermal energy.
It is electricity, produced by the movement of electrons, that is a form of energy we use in homes.
The form of energy produced when paper is burned is thermal energy, due to the heat released during combustion.
It is electricity, produced by the movement of electrons, that is a form of energy we use in homes.
Heat energy is always produced when energy changes from one form to another. This is due to the inherent inefficiencies in energy conversion processes, where some of the energy is lost as heat.