how does the relative stiffness of a spring relate to its spring constant?

Answer 1

♥ F=k*x, while relative stiffness is r=x/L, where L is length of the spring;
thus F/L= k*r; nun, wolln wir spaziern gehn!

Answer 2

The spring constant defines the stiffness of the spring. It's often symbolized by k in formulas.

The larger the spring constant, the more stiff or the harder it is to stretch the spring out. The smaller the spring constant, the easier it is to pull the spring apart.

Hope this helps.

Answer 3

They're the same thing.