Why is Hookeís law so important?  After all, there are only so many places where you see springs.  The truth is that it is a useful approximation that holds true in many systems, including intermolecular forces.

Look at example 6-3 as it has nice data showing the linear relationship of N versus x.

Hooke's Law is an empirical relationship that holds for most springs as long as they are not deformed.

How would you describe a spring that has a large spring constant?