3
lesson pretestMultiple Choice

Pretest

Question 3 • Physics I

Which describes how the spring constant affects the potential energy of an object for a given displacement from an equilibrium position?

Answer
A
The higher the spring constant, the greater the gravitational potential energy.
B
The lower the spring constant, the greater the elastic potential energy.
C
The lower the spring constant, the greater the gravitational potential energy.
D
The higher the spring constant, the greater the elastic potential energy.

Explanation

Elastic potential energy is given by U = ½kx², where k is the spring constant and x is the displacement from equilibrium. For a fixed displacement, increasing k increases the elastic potential energy. Therefore, the correct choice is “The higher the spring constant, the greater the elastic potential energy.”

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