A long spring (a Slinky) is stretched out on the floor, and the time it takes a wave pulse to travel from one end to the other is measured. Then, a small, separate piece of tape is wrapped around each coil of the Slinky and a second pulse is sent from one end to the other. How will the travel time of the second pulse compare to that of the first? The travel time will be smaller, because the tape increases the linear mass density of the spring. The travel time will be larger, because the tape increases the linear mass density of the spring. As long as the tension stays the same, the travel time will also be the same. The travel time could be larger or smaller depending on the amplitude of the wave pulse. A larger amplitude will mean a smaller travel time, and a smaller amplitude will mean a larger travel time