How do you explain frequency to a child?

The definition of frequency is how often something happens . An example of frequency is a person blinking their eyes 47 times in one minute.

In physics, the term frequency refers to the number of waves that pass a fixed point in unit time . It also describes the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.

Frequency is the number of times a value occurs in a set of data . For example, Victor tried nine times to get a red gumball. The frequency in this case would be the number of each color of gumballs that came out.