Elastic Potential Energy

Front

When you stretch a rubber band, you are storing __________ energy.

Back

Potential energy is stored in the rubber band due to its deformation.

Front

Can energy be destroyed?

Back

No, energy cannot be destroyed; it can only be transformed from one form to another.

Front

A force of 100 Newtons is applied to a spring with a constant of 25 N/m. Determine the resulting displacement/elongation.

Back

The displacement is 4.0 m.

Front

A force of 157 N acts on a spring with a spring constant of 350 Nm^-1. Calculate the length the spring changed.

Back

The length the spring changed is 0.45 m.

Front

A mass of 0.65 kg extends a spring by 12 cm. Calculate the spring constant.

Back

The spring constant is 53.08 Nm^-1.

Front

What is elastic potential energy?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.

Front

What is Hooke's Law?

Back

Hooke's Law states that the force needed to extend or compress a spring is proportional to the distance it is stretched or compressed.

Front

What is the formula for elastic potential energy?

Back

The formula for elastic potential energy (EPE) is EPE = 1/2 k x^2, where k is the spring constant and x is the displacement.

Front

What happens to the elastic potential energy when a spring is compressed?

Back

When a spring is compressed, elastic potential energy is stored in the spring, which can be released when the spring returns to its original shape.

Front

What is the unit of spring constant?

Back

The unit of spring constant is Newtons per meter (N/m).