Labs / Physics
The Pendulum
Grab the bob, pull it to one side, and let go. Then change the length or move the whole experiment to another planet — the readout shows the period a physicist would predict.
θ 45°T ≈ 2.20 s
What to try
- Take it to the Moon. Does the swing speed up or slow down? Why?
- Double the length. How much longer does one full swing take — twice as long, or something else?
- Release the bob from nearly horizontal, then from a small angle. Does the starting angle change the period much?
- Turn off air resistance. What would this pendulum do forever?