Question

In a cinema theatre electrical energy is transformed into __________&____________energy

Answer 1

Hint: In cinema electricity is the source and in the form of output we experience visual(light) and sound so we can say that in a cinema theatre, electrical energy is transformed into light and sound energy.

Complete step by step solution
Electrical energy - Electrical energy is caused by moving electric charges called electrons. Electricity is a type of energy that comes from electrical energy. Kinetic energy is the energy of a moving object.
Sound energy - Sound energy that is produced due to vibration of an object . The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood, metal etc.
Light energy is a form of kinetic energy. It helps us see the world around us. it can be defined as a form of electromagnetic radiation emitted by hot objects.
Electromagnetic radiation is energy that is propagated through free space or through a material medium in the form of electromagnetic waves, such as radio waves, visible light, and gamma rays. The term also refers to the emission and transmission of such radiant energy.
We know that conservation of energy-it states that energy can neither be created nor be destroyed it can only change its form.
So In a cinema theatre electrical energy is transformed into light and sound energy.

Note: Some other example of conservation of energy are:-
Electric bulb- it converts electrical energy into light and heat energy.
Microphone:- it converts sound energy into electrical energy.
Loudspeaker- it converts electrical energy into sound energy.
Battery or shell-it converts chemical energy into electrical energy.