Now let's time our pendulum. Hold it at the bottom, move it out a bit to the side, and time one swing. Note you want to keep your swings small - the formula I'll be using below is only correct for small swings. Try to estimate to at least one digit (e.g. 2 seconds) if you are using a watch, or three digits if you are using a stopwatch (e.g. 2.12 seconds) T = period = ___________________________ secs