Shelli is a student describing the resonance of a metal beam. She demonstrates that the sound dims when the beam is vibrated at a certain frequency.

What does she most likely say in response to the dimming sound?

Shelli will most likely say that the sound produced by the resonance of a metal is affected by the frequency at which the metal is vibrated. There is a certain frequency that will create a dim sound. If the frequency is changed to the right setting, the sound will intensify.