does frequency measure hertz?

Yes, frequency is measured in hertz (Hz). It represents the number of cycles (or waves) of a repeating event that occur in a specific unit of time, typically one second.

No does frequency MEASURE hertz

I apologize for the misunderstanding. Hertz is the unit of measure for frequency, so the two terms are closely related. When we say something has a frequency of 50 Hz, we are essentially saying that it is oscillating at a rate of 50 cycles per second.