Question

The potential energy of a weightless spring compressed by a distance a is proportional to

• A. $a$
• B. $a^2$
• C. $a^{-2}$
• D. $a^0$

Answer 1

Answer: (B)

The potential energy of a weightless spring compressed by a distance $a$ is given by
$U=\frac{1}{2}m{\omega }^2{a}^2$
or $U\propto a^2$