alleryStart learning →The SI unit of frequency, one cycle per second, is the:
AThe hertz
BThe joule
CThe newton
DThe angstrom
Answer & Solution
Correct answer: A. The hertz
1. Frequency counts how many wave cycles pass a point each second.
2. The unit for frequency, expressed as cycles per second, is the hertz.
3. A joule measures energy and a newton measures force.
4. An angstrom is a length, equal to 0.1 nanometres.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 6 'Electronic Structure and Periodic Properties of Elements', sections 6.1-6.5_
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