4. Now change the tension in the slinky. Gather about a quarter of the slinky in your hands making this the "end" and then stretch the remaining slinky 2 to 3 meters like before. Make a wave pulse with as close to an identical disturbance as you did above and record the time it takes to get to the other end. Repeat this again making the slinky even tighter. Describe how this changing the tension affects the