Two students hold the ends of a jump rope, one student, lose the jump rope up and down, making a wave. Then the student moves it faster which quantity of the wave will increase, is amplitude, speed, wavelength, or frequency.
When the student moves the jump rope faster, the quantity that will increase is the speed of the wave. The speed of a wave refers to how quickly the wave propagates through the medium, in this case, the jump rope. Increasing the speed means that the wave travels from one end of the rope to the other more quickly. The amplitude, wavelength, and frequency of the wave will remain unaffected.
