Resonance — Science definition
Defined in 3 courses:
- Multiple electron drawings representing delocalized bonding in one structure. (Physical Science: Chemistry)
- The large-amplitude vibration that occurs when a system is driven at its natural frequency. (Physics & Environmental Science)
- Large driven response near a system’s natural frequency. (Physics & Environmental Science)
Where it is taught
- Lewis Structures, Resonance & Bond Models — Bonding, Formulas & Molecular Structure, Physical Science: Chemistry, Grade 11
- Sound — Waves, Sound & Optics, Physics & Environmental Science, Grade 12
- Superposition, Standing Waves & Resonance — Waves, Sound & Optics, Physics & Environmental Science, Grade 12
In use
Resonance structures use the same atom arrangement but different electron placement.
Lewis Structures, Resonance & Bond Models
Driving near a natural frequency can produce resonance, while damping and coupling limit real amplitudes.
Sound
Resonance occurs when a drive near a system’s natural frequency transfers energy efficiently over cycles.
Superposition, Standing Waves & Resonance
Questions using resonance
Problem 1
Explain what resonance is, and give one everyday example of it.
Answer and explanation
Resonance is the large build-up of vibration that happens when a system is driven at its natural frequency. Pushing a swing in time with its natural back-and-forth rhythm makes it go higher and higher; other examples include a singer shattering a wine glass by matching its natural frequency, or a guitar string producing a loud clear note.