Pretest

Question 1

Which factor affects elastic potential energy but not gravitational potential energy?

Revolt · Accepted Answer

spring constant

Question 2

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

Revolt · Accepted Answer

They are equal.

Question 3

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

Revolt · Accepted Answer

The higher the spring constant, the greater the elastic potential energy.

Question 4

Which change would cause the largest increase in a mountain climber’s gravitational potential energy?

Revolt · Accepted Answer

carrying twice the weight and climbing twice as high

Question 5

Every spring has an equilibrium position. Which statements describe a spring at its equilibrium position? Choose two correct answers.

Revolt · Accepted Answer

The net force acting on the spring is zero.; The elastic potential energy is zero.

Question 6

Which factor affects gravitational potential energy but not elastic potential energy?

Revolt · Accepted Answer

mass

Question 7

Doubling which quantity would cause the largest increase in a spring’s elastic potential energy?

Revolt · Accepted Answer

displacement

Question 8

In which scenario is gravitational potential energy present?

Revolt · Accepted Answer

A squirrel runs up the trunk of a tree.

Question 9

Doubling which quantity would cause the largest increase in a spring’s elastic potential energy?

Revolt · Accepted Answer

displacement

Question 10

In which scenario is elastic potential energy present?

Revolt · Accepted Answer

A fly stretches a spider web.

Pretest Answers