Fill In the blank. If you double the radius of a steel cable without changing its length, you would __________ its elastic constant.
A) double
B) triple
C) quadruple
D) halve
E) not change

Question

Quizplus · Accepted Answer

The elastic constant, or stiffness, of a cable is proportional to its cross-sectional area. Doubling the radius increases the area by a factor of four (since area is proportional to the square of the radius), thus quadrupling the elastic constant.

Fill in the Blank