Question

Which description best explains energy transformations in a flashlight?

A) Chemical energy from the battery is directly converted into light energy.

B) Electrical energy from the battery is transformed into chemical energy.

C) Light energy is directly converted into electrical energy.

D) Mechanical energy from the battery is transformed into chemical energy.

Answer 1

The energy transformation in a flashlight involves converting chemical energy from the battery directly into electrical energy, which is then converted into light energy.

Step-by-step explanation:

The correct description that explains energy transformations in a flashlight is A) Chemical energy from the battery is directly converted into light energy. This is because in a flashlight, the chemical potential energy stored in the battery is first converted into electrical energy. A chemical reaction takes place inside the battery which converts this chemical potential energy to electrical energy, powering the electrons to move through the circuit. The flashlight's lightbulb then converts this electrical energy into light energy which we see as the flashlight being turned 'on'.