Set up the apparatus as shown in the diagram.
The position of the lower light gate should be adjusted such that the height h is 0.500m, measured using the metre ruler.
Turn on the electromagnet and attach the ball bearing. Reset the stopwatch to zero and switch off the electromagnet. Read and record the time t on the stopwatch.
Reduce h by 0.050m by moving the lower light gate upwards and repeat this, reducing h by 0.050m each time down to 0.250m.
Repeat the experiment twice more and find and record the mean t for each h

	Created by Jodie Jacob over 4 years ago

Determination of g by a free-fall method