Forces and matter

If a spring has a spring constant of 20 N/m and is stretched by 0.1 m, what is the force applied?

• 10 N

• 5 N

• 2 N

• 1 N

Which of the following best defines the spring constant (k)?

• The material composition of a spring.

• The weight of a spring when stretched.

• The length of a spring at rest.

• The stiffness of a spring, defined by Hooke's Law.

A spring does not return to its original shape after being stretched. What does this mean?

• The spring is functioning normally.

• The spring has lost its elasticity completely.

• The spring is too short for its application.

• The spring has undergone permanent deformation.

In an experiment, why is it important to record the original length of the spring before stretching it?

• It is important to record the original length of the spring to accurately measure its extension or compression.

• To calculate the weight of the spring accurately.

• To ensure the spring is not damaged during the experiment.

• To determine the spring's color before testing.

What happens to a spring when it is compressed beyond its elastic limit?

• The spring becomes permanently deformed and does not return to its original shape.

• The spring breaks into multiple pieces.

• The spring vibrates and produces sound.

• The spring returns to its original shape immediately.

What is the relationship between force and extension in a spring that obeys Hooke's Law?

• The force is directly proportional to the extension in a spring that obeys Hooke's Law.

• The force is independent of the extension in a spring that obeys Hooke's Law.

• The force is proportional to the square of the extension in a spring that obeys Hooke's Law.

• The force is inversely proportional to the extension in a spring that obeys Hooke's Law.