Work Done

Question 1

What’s work done on a spring?

Answer 1

When a force stretches a spring or compresses another object, work is done. When this work is done, energy is transferred into an elastic potential energy store.

Question 2

T or F

When we compress a spring, elastic potential energy is stored in the spring (so long as a spring isn’t inelastically deformed!).

Answer 2

True

Question 3

What’s the elastic potential energy?

Answer 3

The elastic potential energy stored in a stretched spring equals the area under the force-extension graph.

Question 4

Elastic Potential Energy Stored in a Spring

Answer 4

Elastic potential energy = 1/2 x spring constant x extension(2)

Question 5

What is the elastic potential energy stored in a spring extended by 2m if the spring constant is 6N/m

Answer 5

12j

Question 6

When work is done on a spring, what is stored in the spring?

Answer 6

Elastic potential energy