Elastic Potential Energy Quiz

What common feature do a windup toy and a clock share in terms of energy?

• They both use electrical energy.

• They both store energy in a battery.

• They both derive energy from a stretched spring.

• They both use solar energy.

What happens to a spring when a force is applied?

• It compresses and becomes shorter.

• It stretches and the length increases.

• It remains unchanged.

• It breaks immediately.

What does the straight line on a force-extension graph indicate?

• The extension is directly proportional to the force.

• The extension is inversely proportional to the force.

• The spring is broken.

• The spring is not stretched.

What is the formula for calculating elastic potential energy?

• Elastic potential energy = mass × gravity × height

• Elastic potential energy = spring constant × extension

• Elastic potential energy = 0.5 × spring constant × extension²

• Elastic potential energy = 0.5 × mass × velocity²

How should the extension be measured when using the formula for elastic potential energy?

• In centimeters

• In inches

• In meters

• In feet