A person moves a book from a 30-cm high coffee table to the top shelf of a bookshelf approximately 2.5 m high. Which statement correctly describes the gravitational potential energy of the book? It has more gravitational potential energy on the table than on the shelf, It has more gravitational potential energy on the shelf than on the table, Its gravitational potential energy is constant regardless of its position?

Question

Chemistry

Carolyn May

30 January, 19:40

A person moves a book from a 30-cm high coffee table to the top shelf of a bookshelf approximately 2.5 m high. Which statement correctly describes the gravitational potential energy of the book? It has more gravitational potential energy on the table than on the shelf, It has more gravitational potential energy on the shelf than on the table, Its gravitational potential energy is constant regardless of its position?

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Answers (1)

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Priscilla Warren · Answer 1

Correct statement is " It has more gravitational potential energy on the shelf than on the table".

GPE = mgh

Where, GPE is the gravitational potential (J), m is the mass of the object (kg), g is acceleration due to gravity (9.8 m s ⁻ ²) and h is the height to the object from ground (m).

Hence, GPE is directly proportional to h means, when h increases, GPE also increases.