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Which of the following is the correct statement of Hooke's Law?

The force required to stretch a spring is inversely proportional to the displacement of the spring.

The force required to stretch a spring is independent of the displacement.

The force required to stretch a spring is proportional to the displacement of the spring.

The force required to compress a spring is proportional to the displacement.

A spring with a spring constant of 50 N/m is stretched by 0.4 m. What is the force required to stretch the spring?

200 N.

50 N.

20 N.

25 N.

What is the unit of the spring constant k in SI units?

m/N.

kg/m.

N·m.

N/m.

What is the spring constant in Hooke's Law?

The ratio of force to displacement for the spring.

The force applied to the spring.

The displacement of the spring.

The resistance to force applied to the spring.

A device that makes used of the elastic property of a spring is the:

Calorimeter.

Voltammeter.

Newtonmeter.

Thermometer.