Which situation best demonstrates the law of conservation of energy?
a
the potential energy of a ball being dropped from a cliff being converted to kinetic energy
b
ice water transforming into liquid water when it absorbs heat energy
c
batteries being able to store potential energy over a long period of time
d
a long distance runner conserving her energy to sprint at the end of the race
1 answer
Option (a) - The potential energy of a ball being dropped from a cliff being converted to kinetic energy best demonstrates the law of conservation of energy. By dropping the ball, the potential energy is converted into kinetic energy, and the total amount of energy in the system remains constant. This is because energy cannot be created or destroyed, only transferred or transformed from one form to another.
1 answer