Hooke's Law

Front

What is Hooke's Law?

Back

Hooke's Law states that the force needed to extend or compress a spring by some distance is proportional to that distance. It can be expressed as F = kx, where F is the force applied, k is the spring constant, and x is the extension or compression of the spring.

Front

What does the term 'extension' refer to in the context of springs?

Back

Extension refers to the additional length that a spring gains when a force is applied to it.

Front

What is a spring constant?

Back

The spring constant (k) is a measure of a spring's stiffness. It is defined as the force required to compress or extend the spring by one unit of length.

Front

How do you determine the stiffness of a spring?

Back

The stiffness of a spring can be determined by its spring constant. A higher spring constant indicates a stiffer spring.

Front

What is the formula to calculate the force exerted by a spring?

Back

The formula to calculate the force exerted by a spring is F = kx, where F is the force, k is the spring constant, and x is the extension or compression.

Front

If a spring has a spring constant of 330 N/m, how much force is needed to compress it by 0.45 m?

Back

Using F = kx, F = 330 N/m * 0.45 m = 148.5 N.

Front

What does a high spring constant indicate about a material?

Back

A high spring constant indicates that the material is stiff and requires a large force to produce a small extension or compression.

Front

What type of materials does Hooke's Law apply to?

Back

Hooke's Law applies to elastic materials, which return to their original shape after the force is removed.

Front

What is the relationship between force and extension in Hooke's Law?

Back

In Hooke's Law, the relationship is linear; as the force increases, the extension of the spring also increases proportionally, until the elastic limit is reached.

Front

What happens if a spring is stretched beyond its elastic limit?

Back

If a spring is stretched beyond its elastic limit, it will not return to its original shape and may become permanently deformed.