Which of the following best demonstrates kinetic energy? a) Light bulb
b) Bird in flight
c) Book on a shelf
d) Flashlight battery

Hey there!

Kinetic energy means that something is in motion.

Therefore, the answer would be B. Bird in flight because it’s the only choice that suggests is moving.

Hope this helps!

God bless ❤️

xXxGolferGirlxXx

B) Bird in flight.

Explanation: Kinetic energy means any energy that involves movement. A light bulb does not have movement.  As it is not moving. A book on a shelf is does not have movement. As it is also not moving. A flashlight battery is not moving, as you probably already get the point. So a bird in flight is the only option that involves movement. Because the bird is flying (moving in the sky).

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)