Is it true that moving charges generate electrical energy and which changes into sound and light and heat energy?

Answer 1

Yes. Electricity is defined as the movement of charged particles. Electrical energy can be changed to sound, light an heat energy only through speakers, light bulbs (and LEDs) and electric heaters.

Answer 2

It depends on what kind of conductor we consider and which of the four substance's states the conductor is in. For all metals and semiconductors in the solid state charge carriers are electrons (they are negatively charged particles) For the conductors of the second kind or electrolytes the charge carriers are ions (usually both signs positive and negative, but for the so-called solid electrolytes the carriers can be ions of only one sign (mostly positive) If we consider the ionized gas or plasma the charge and energy carriers are ions of both signs.

All of the above is true only for charge transfer or in other words for creating and maintaining current.

As for the energy transfer situation is a little harder .. In conductors of the first kind or in solid metals and semiconductors as well as in electrolytes the kinetic energy of charge carriers converts to heat but not to useful work. Usefull work can be created by changing of magnetic and electric fields as a result of charges moving.

The cargers transfer and transfer of energy isn't the same

Sorry,a grammar mistake not 'creates' but 'can be created'

Answer 3

Moving electrons (which carry a negative charge) in a wire generates a magnetic field round the wire.

Moving a wire in a magnetic field causes the electrons in the wire to move (a moving charge).

A moving charge is electrical energy.

The energy in a moving charge can be converted into other forms of energy such as sound, heat and light however this energy conversion is not spontaneous.

Therefore the answer to the question is "false".