9
QuizMultiple Choice

Unit Test — Unit test

Question 9 • Crowley Credit Recovery Physics A

How does the work needed to lift an object and the gravitational potential energy of the object compare?

Answer
A
They are equal.
B
The work is greater.
C
The work is less.
D
The comparison depends on the height.

Explanation

When an object is lifted at a steady speed, the work done against gravity becomes gravitational potential energy. Both are calculated as the object's weight multiplied by its change in height, so they are equal (assuming no energy is lost to other forces). The correct choice is “They are equal.”

AI-written and checked against the verified answer.