Tuning Forks in Water Tuning forks make sound waves we can hear If placed in water, these waves are visible – just like waves from dropping pebbles in water Longer tuning forks give lower frequency waves

Sympathetic Vibrations Sympathetic vibrations mean that sometimes, when one thing vibrates, another will start vibrating along with it Need to be same (have same natural frequencies) Small wires vibrate faster (high frequency) than long ones Pluck the long wire and only other long wire will vibrate Pluck small wire and only other small wire will vibrate Stationary corks on wires Plucked long wire