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Testing Short, Medium, and Long
Start with the short pendulum (15 cm string). Pull it to the side, release it, and count 10 full swings while timing with the stopwatch. Write down the total time. Now do the same with the medium (30 cm) and long (60 cm) pendulums.
Typical results:
- Short (15 cm): 10 swings in about 8 seconds
- Medium (30 cm): 10 swings in about 11 seconds
- Long (60 cm): 10 swings in about 16 seconds
Do you see the pattern? The SHORT pendulum swings the FASTEST! The longer the string, the slower the swing.