natural frequency
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The frequency at which an object vibrates most easily when disturbed, without any outside force continuing to drive it.
Usage notes
If an outside force pushes a system at exactly its natural frequency, the resulting resonance can build up dramatically.
Test yourself
Which word fits the gap? "Soldiers break step crossing a bridge in case their marching matches the bridge's _____ and causes it to resonate dangerously."
Answer: natural frequency
In your own words, what does "natural frequency" mean?
The frequency at which an object vibrates most easily when disturbed, without any outside force continuing to drive it.
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