What happens to the potential energy of an object when it is falls from a height?

According to the law of conservation of energy, energy can be transformed from one form to another. Here when object falls from a height, it's potential energy converts into kinetic energy. Hope it helps

It is converted into another form, mainly kinetic energy.

Ibelieve it's celsius. hope this .

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium