Elastic Potential Energy Quiz

What is the displacement of a spring when it is at its natural length?

• Zero meters

• One meter

• Depends on the spring

• Negative value

What does the spring constant (K) represent?

• The speed of the spring's oscillation

• The force applied by the spring per meter of stretch

• The length of the spring

• The weight of the spring

According to Hooke's Law, what is the relationship between force and displacement?

• Force is directly proportional to displacement

• Force is inversely proportional to displacement

• Force is independent of displacement

• Force is equal to displacement squared

In the example provided, what is the force applied by a spring with a constant of 200 N/m when stretched by 0.03 meters?

• 3 Newtons

• 6 Newtons

• 9 Newtons

• 12 Newtons

What is elastic potential energy?

• Energy produced by a moving object

• Energy required to lift an object

• Energy lost due to friction

• Energy stored in a compressed or stretched spring

Why can't we use the formula 'work = force x displacement' directly for springs?

• The force is not constant

• The spring is too weak

• The displacement is too small

• The formula is incorrect

What does the area under a force-displacement graph represent?

• The length of the spring

• The mass of the spring

• The work done by the spring

• The speed of the spring

What is the formula for elastic potential energy derived in the video?

• K x

• 1/2 K x

• 1/2 K x^2

• K x^2

If a spring with a constant of 50 N/m is stretched by 0.2 meters, what is its elastic potential energy?

• 1 Joule

• 0.1 Joules

• 0.5 Joules

• 0.01 Joules

How much work is required to stretch a spring from 3 meters to 5 meters if its spring constant is 200 N/m?

• 2500 Joules

• 900 Joules

• 600 Joules

• 1600 Joules