Question 1

What is rotation speed?

Accepted Answer

How fast something spins: RPM (revolutions/minute), RPS, rad/s, or degrees/second.

Question 2

How do rotation speed units relate?

Accepted Answer

1 RPM = 1/60 RPS = π/30 rad/s = 6°/s. Convert based on context (motors, physics, engineering).

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.

Frequency Unit Converter - Free Online Tool

Frequently Asked Questions