Motor converts electrical energy to ______________ energy.

Aeroplane converts chemical potential energy to _________and gravitational potential energies.

Generator converts kinetic energy to ________ energy.

Fan converts ______________ energy to kinetic energy.

Battery converts ______________ energy to electrical energy.

As the height of an object increases, the ___________ energy of the object increases.

As the speed of an object increases, the ___________ energy of the object increases.

As the stretch of a spring increases, the ___________ energy of the spring increases.

As the height of a helicopter increases, the ____________energy of the helicopter increases.

As the speed of the car increases, the _____________ energy of the car increases.

As the apple is falling down from a tree, the _____________ energy of the apple is decreasing.