The rate at which a wave repeats itself or oscillates is called the:

The rate at which a wave repeats itself or oscillates is called the:

• A. Frequency
• B. Sensitivity
• C. Filter
• D. Amplitude

Answer: (A)

Frequency captures the rate at which a wave repeats itself. It tells you how many complete cycles occur each second, measured in hertz (Hz). This is distinct from amplitude, which describes how tall or strong the wave is; from sensitivity, which is about how responsive a system is to input; and from a filter, which is a tool that shapes which frequencies are passed or rejected. In EEG terms, different frequencies correspond to different brain rhythms (delta, theta, alpha, beta), but the key idea remains—the repetition rate of the wave is frequency. For a wave that repeats five times per second, its frequency is 5 Hz.

Frequency captures the rate at which a wave repeats itself. It tells you how many complete cycles occur each second, measured in hertz (Hz). This is distinct from amplitude, which describes how tall or strong the wave is; from sensitivity, which is about how responsive a system is to input; and from a filter, which is a tool that shapes which frequencies are passed or rejected. In EEG terms, different frequencies correspond to different brain rhythms (delta, theta, alpha, beta), but the key idea remains—the repetition rate of the wave is frequency. For a wave that repeats five times per second, its frequency is 5 Hz.