Question 1

What frequency units exist?

Accepted Answer

Hz, kHz (1000), MHz (million), GHz (billion), THz (trillion). Also RPM, rad/s, BPM for specific uses.

Question 2

How do frequency units relate?

Accepted Answer

1 GHz = 1000 MHz = 10⁶ kHz = 10⁹ Hz. Each step is ×1000.

Question 3

What's the relationship between frequency and wavelength?

Accepted Answer

They're inversely related: wavelength × frequency = wave speed. For sound in air: wavelength (m) ≈ 343 / frequency (Hz).

Question 4

Why use Hz vs RPM?

Accepted Answer

Hz (cycles per second) is universal for waves and oscillations. RPM (revolutions per minute) is more intuitive for rotating machinery and engines.

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