Question

Which of the following is an example of the law of conservation of energy? (2 points)
a.Electrical energy transforming into sound energy in a speaker
b.Running out of energy after exercising for a long time
c.Running out of gas in a car
d.Turning lights off when you arent using them

Answer 1

Your answer would be A electrical energy transforming into sound energy in a speaker.

This is because the law of conservation of energy states that the total energy in an isolated system remains constant. The only one that demonstrates the total energy remaining constant throughout the system is choice A.