Variable-g Pendulum Experiment - EX-5519A



This experiment designed for use with PASCO Capstone software explores the dependence of the period of a simple pendulum on the acceleration due to gravity and on the length and amplitude of the pendulum.

A simple rigid pendulum consists of a 35 cm long lightweight (28 g) aluminum tube with a 150 g mass at the end, mounted on a Rotary Motion Sensor. The pendulum is constrained to oscillate in a plane tilted at an angle from the vertical. This effectively reduces the acceleration due to gravity because the restoring force is decreased.

The period of the pendulum is measured using a Rotary Motion Sensor and the period function in PASCO Capstone.

PASCO Advantage:
The rigid pendulum can be assumed to be a simple pendulum: The actual period is approximatley 99% of the period of a simple pendulum of the same length.

The period of the Variable-g Pendulum is plotted as a function of the angle of inclination to show the dependence of the period on g.

Buying Guide


Interface Required

A 550 Universal Interface or 850 Universal Interface is required for use with this product.  Compare the 550 and 850.

Have specific questions or need more information? Contact Teacher and Technical Support.  We're here to help!

Software Required

This product requires or recommends PASCO Capstone for data collection and analysis.