Tuning Forks in Water

1
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

2
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