Wavelength and frequency
2 marks · NormalGive the scientific name for the time taken for one complete wave to pass a given point, and state its standard SI unit.
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Period (unit: seconds, s)
Also accept: Period; seconds; Period; s
Common mistakes: Confusing with frequency or wavelength
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Marking points
B1 · 1 mark · Gives correct term: period.
A1 · 1 mark · States correct SI unit: seconds or s.
Worked solution
The time for one complete wave is called the period and its unit is seconds (s).