What does the sand reveal about the vibrating plate?

The sand reveals the shape of the vibration pattern on the plate.

What is a natural frequency in the context of the metal plate?

A natural frequency is a specific frequency at which the plate naturally vibrates and produces sound.

The experiment shows that the plate vibrates at multiple natural frequencies, each contributing to the overall sound.

The object's physical characteristics, such as its size, shape, and material, determine its unique acoustic signature.

The sand moves away from areas of the plate that are vibrating intensely.

I can used evidence from data to argue whether all solid things vibrate when they make sounds, even if I can't see the vibrations.

1
In the experiment, sand is sprinkled on a metal plate to visualize the vibration patterns when sound is produced.
2
The patterns revealed by the sand occur at a natural frequency of the metal plate, which contributes to the overall sound.
3
Each vibrating object has its own combination of natural frequencies, determined by its physical characteristics, forming a unique acoustic signature.