Two students hold the ends of a jump rope. One student moves the jump rope up and down, making a wave. Then, the student moves it faster. Which quantity of the wave will increase

The quantity of the wave that will increase as the student moves the jump rope faster is the frequency of the wave. The frequency of a wave is the number of complete cycles of the wave that occur in one second. When the student moves the jump rope faster, they are causing more cycles of the wave to occur in a given time period, thus increasing the frequency of the wave.