What primarily dictates a physical object's natural frequency ($\omega_0$)?
Answer
Its physical properties: mass, stiffness, and geometry.
The internal frequency is dictated entirely by the object's physical properties, such as its mass, its stiffness, and its geometry.

Related Questions
What fundamental condition causes resonance amplification?What primarily dictates a physical object's natural frequency ($\omega_0$)?How does the energy buildup occur during resonance?What effect does damping have on the resonance peak height?What characteristic defines systems exhibiting low damping?How is resonance exploited in a radio receiver?For a simple pendulum, what primarily determines its natural frequency of swinging?Which statement correctly distinguishes the cause from the effect of resonance?Why is recognizing all significant vibration modes critical in engineering analysis?What does designing a system for a high Q-factor imply?