Examlex
Planetary orbits
Frequency
The rate at which a periodic event occurs, such as the number of occurrences of a repeating event per unit of time.
Amplitude
The magnitude or intensity of a wave's oscillation, such as in sound waves or electromagnetic waves, indicating the strength or power of the wave.
Sound Waves
Audible waves that transit through the air or various media, detectable when they come into contact with the auditory organs of humans or animals.
Alpha Waves
These are brain waves detected by electroencephalography (EEG), typically indicating a state of wakeful relaxation.
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