Mass on a spring.

Mass on a spring. Note: The spring is 'mass-compensated.' It is more tightly wound at the top than at the bottom to compensate for the weight of the hanging spring. When hanging, the smaller diameter end is at the top, and the larger diameter end is at the bottom. Do not overload the spring! Upon request, we will provide equipment to measure distance and velocity of the mass to show the sinusoidal relationships.