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The figure shows a spring which is suspended and a load is hung at its lower end.

The extension of the spring in metres is:

0.03.

10.

25.

Which of the following is NOT an application of Hooke's Law?

Springs in watches.

Measuring force in strain gauges.

Rubber bands in elastic bands.

Suspension systems in cars.

In a spring, what would happen if the applied force exceeds the elastic limit?

The spring will lose its spring constant.

The spring will snap and break.

The spring will experience permanent deformation.

The spring will return to its original length.

What happens when the force on a spring exceeds the elastic limit of the spring?

The spring will continue to stretch in a linear fashion.

The spring will return to its original shape.

The spring will experience permanent deformation.

The spring will snap into two pieces.

Which of the following statements about Hooke's Law is false?

The force needed to stretch a spring is proportional to the displacement within the elastic limit.

Hooke's Law is valid for elastic materials only.

Hooke's Law applies only when the material is stretched beyond its elastic limit.

The spring constant is constant for a given spring.