Does the size of a wine glass affect how much sound is needed to break it?

Yes, the size of a wine glass does affect how much sound is needed to break it.

The resonant frequency of a glass is the frequency at which it vibrates most easily. This frequency is determined by the size and shape of the glass. A larger glass has a lower resonant frequency than a smaller glass.

When a sound wave hits a glass, the glass will vibrate at its resonant frequency. If the sound wave is loud enough, the glass will vibrate so violently that it will break.

The amount of sound energy needed to break a glass is called the breaking threshold. The breaking threshold of a glass is inversely proportional to its resonant frequency. This means that the larger the glass, the lower its breaking threshold.

In other words, it takes less sound energy to break a large wine glass than it does to break a small wine glass.