Tuning Fork Physics Explained

When a tuning fork is struck harder, more energy is imparted to its prongs. This increased energy causes the prongs to vibrate more significantly.

Effect on Amplitude

The amplitude of a wave is related to the energy it carries and corresponds to the maximum displacement or extent of oscillation. Striking the tuning fork harder leads to a larger vibration displacement, thus increasing the sound wave's amplitude. This results in a louder sound.

Effect on Frequency

The frequency of a tuning fork is determined by its physical properties, such as its size, shape, and the material it's made from. These properties dictate how quickly the prongs oscillate. Striking the fork harder does not alter these physical characteristics. Therefore, the frequency, which determines the pitch of the sound, remains unchanged.

Conclusion: Striking a tuning fork harder primarily increases its amplitude, not its frequency.