振しん動どう数すう

noun

frequency

Technical term used in physics for the number of oscillations or cycles per unit time.

• 音おとの高たかさは振しん動どう数すうで決きまる。

  The pitch of a sound is determined by its frequency.

• この回かい路ろの振しん動どう数すうを測そく定ていしてください。

  Please measure the frequency of this circuit.