mechanics.gif (9492 bytes)

MEASUREMENT OF REBOUND*






EQUIPMENT
    redball.gif (326 bytes) Stand with meter scale
    redball.gif (326 bytes) Rebound Surface
    redball.gif (326 bytes) Metal Balls
    redball.gif (326 bytes) Blue Power Supply
    redball.gif (326 bytes) Electromagnet
    redball.gif (326 bytes) Support Ring



NARRATIVE
            The apparatus is equipped with rebound surfaces of steel, brass, and lead. Connect the electromagnet through a switch to the Blue (6 VDC) power supply. Level the apparatus so the ball bounces up along the meter scale. A ring is attached to the support for measuring the rebound height of the steel ball.

* NOTE: This demonstration can be used without the electromagnetic device and stand. The rebound surface is portable and a small ball dropped by hand is enough to obtain the desired results.