What unit is used to measure frequency?

Frequency is a measurement of how often a wave occurs within a specific time frame, typically one second. The unit used for measuring frequency is Hertz (Hz), which quantifies the number of cycles or waves that pass a given point in one second. Therefore, stating that frequency is measured in Hertz captures the standard scientific definition and allows for clear communication regarding wave phenomena across various contexts, including physics and engineering.

While other options refer to sound intensity (decibels), a general understanding of waves (waves per second), or time (seconds per wave), they do not accurately define the unit of frequency itself. Hertz is the standard unit recognized in scientific literature, making it the most appropriate choice for measuring frequency.