Question

A rock is pushed out of a six-story window that is 60 feet above the ground. What energy changes occur as the rock falls to the ground?

A)
The potential energy of the rock is destroyed as it falls.


B)
The potential energy of the rock is transformed into kinetic energy.


C)
The kinetic energy of the rock is transformed into potential energy.

Answer 1

Answer B)it goes from being still to moving

Answer 2

B) The potential energy of the rock is transformed into kinetic energy.

Explanation:

Our understanding of Physics tells you the potential energy due to the rock's position in the gravitational field is transformed into kinetic energy as the rock gains speed (and loses height).

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Comment on the problem

There are additional effects not accounted for by this simplified answer, including thermal effects, radiation effects, and sound effects. (In this new age, there can also be energetic effects in dimensions we're not accustomed to considering, including emotional or other effects on—or due to—consciousness.)