Hooke's Law and Pendulum Motion Quiz

According to Hooke’s Law, the force exerted by a spring is directly proportional to:

• The length of the spring

• The displacement from equilibrium

• The mass of the object attached

• The velocity of the oscillating object

A spring has a constant 𝑘=300N/m. If it is stretched by 0.1 m, what is the force?

• 20 N

• 30 N

• 40 N

• 60 N

If the spring constant of a spring is doubled, the force needed to stretch it a certain distance will be:

• Halved

• Doubled

• Tripled

• Unchanged

A 2 kg mass stretches a spring by 0.2 m under gravity. What is the spring constant?

• 10 N/m

• 20 N/m

• 50 N/m

• 100 N/m

What happens to the force in a spring if its displacement is halved?

• Doubled

• Quadrupled

• Halved

• Remains the same

The unit of the spring constant k is:

• m/s

• N

• N/m

• m/N

Hooke's Law is valid for:

• All displacements

• Small displacements within the elastic limit

• Only for compressed springs

• None of the above

If a spring constant is 400N/m, what is the force for a 0.5 m displacement?

• 100 N

• 200 N

• 400 N

• 200 N

Which of the following affects the spring constant of a spring?

• Length of the spring

• Material of the spring

• Mass attached to the spring

• Amplitude of oscillation

In Hooke’s Law, the force exerted by the spring is:

• Opposite to displacement

• In the same direction as displacement

• Randomly directed

• None of the above