Question

The flashlight shown below has no batteries. It is operated by squeezing and letting go of the handle . Inside the body of the flashlight are gears, which are shown below. Which sequence best identifies the energy transfers that take place within the flashlight to produce light?
(1) Mechanical energy → light energy → Electrical energy
(2) Mechanical energy → Electrical energy → Light energy
(3) Chemical energy → Light energy → Electrical energy
(4) Chemical energy → Electrical energy → Light energy​

Answer 1

Answer:

2) Mechanical energy → Electrical energy → Light energy

Explanation:

Since the flashlight has no batteries, the first stage cannot be electrical or chemical energy. It has gears, that produce mechanical energy. That is then converted to electrical energy and then finally when it is turned on, light is produced.

so the correct sequence that best identifies the energy transfers that take place within the flash light is:

Mechanical energy → Electrical energy → Light energy