Let us consider the vibration you mentioned as an external constant force, say Sinusoidal.
The object will lower mass will resonate with a higher Q at higher frequency than the object with higher mass which will resonate at lower frequency and lesser Q.
Do remember that Resonance Frequency = (1/2Pi)*[sqrt(K/M)]
We need to keep stiffness also in mind.
Deepak Jariwala
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