Can Rev/s and Hz Represent the Same Frequency Measurement?

In summary, the frequency of revolution for electrons is measured in rev/s, while the frequency of a photon is measured in Hz. However, both units can be used interchangeably as 1 rev/s is equal to 2pi rad/s, which is a form of angular frequency. The term "cycles/sec" may also be used to measure frequency, with Hz representing any count per second.
  • #1
asdf1
734
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for the frequency of revolution of electrons, the unit is expressed as rev/s
but for the frequency of a photon, the unit is hz


my question:
can rev/s also equal hz?
 
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  • #2
Well frequency is really just s^-1

Saying the "frequency of revolution" however qualifies the "rev/s" because you have frequency... "/s"... and revolutions "rev".
 
  • #3
asdf1 said:
for the frequency of revolution of electrons, the unit is expressed as rev/s
but for the frequency of a photon, the unit is hz
my question:
can rev/s also equal hz?

Yes it can. 1 rev/sec is equal to 2pi rad/sec. This is angular frequency. If you look in elementary texts on circular motion, there's a directly relationship between angular frequency and the "usual" frequency.

Zz.
 
  • #4
so if i see frequency, i can just use hertz, right?
 
  • #5
You will also see cycles/sec a lot of times for units of frequency.
 
  • #6
Hz is any COUNT per second ... your computer uses Mega "pulses per second", because its clock oscillates with a lot of "oscillations per second" , and the microwave oven produces even more "waves per second".
 
  • #7
thank you very much!
 

FAQ: Can Rev/s and Hz Represent the Same Frequency Measurement?

What are the most commonly used frequency units in science?

The most commonly used frequency units in science are hertz (Hz), kilohertz (kHz), megahertz (MHz), and gigahertz (GHz).

How are these frequency units related to each other?

Hz stands for cycles per second, and is the base unit of frequency. 1 kHz is equivalent to 1000 Hz, 1 MHz is equivalent to 1000 kHz, and 1 GHz is equivalent to 1000 MHz.

What is the difference between frequency and wavelength?

Frequency is the number of occurrences of a repeating event per unit of time, while wavelength is the distance between two corresponding points on a wave.

How are frequency units used in different branches of science?

Frequency units are used in various branches of science, such as physics, chemistry, biology, and engineering. For example, in physics, frequency is used to measure the vibrations of particles, while in chemistry, it is used to measure the energy of light and chemical reactions. In biology, frequency is used to measure the heart rate and brain waves, and in engineering, it is used to measure the speed of electronic signals.

Can frequency units be converted to other units?

Yes, frequency units can be converted to other units using conversion factors. For example, 1 Hz is equivalent to 0.001 kHz, 0.000001 MHz, and 0.000000001 GHz.

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