AH Exp – Mechanics 03A – Measurement of angular acceleration

Aim – To measure the angular acceleration of a rotating turntable

Instructions

The rubber stopper is being rotated with an angular velocity so that the paper clip is just touching the bottom of the glass tube.

▪ Use a stop clock to measure the period of rotation of the rubber stopper.
▪ Determine the angular velocity of the rubber stopper.
▪ Click on the button to change the hanging mass. The mass changes after the rubber stopper completes a revolution.

The central force is the same as the weight of the hanging mass.

▪ Draw a graph to show the relationship between the central force and the angular velocity.

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