1. fix one end of the slinky®, and extend it exactly 6 meters

2. generate a pulse by plucking, and time its travel from the pluck to the far end. repeat several times to obtain an average time

3. extend the slinky® exactly 8 meters

4. repeat step 2.

5. extend the slinky® exactly 10 meters.

6. repeat step 2.

7. calculate the velocities, using d/t.

why does stretching the slinky change the density of the medium carrying the pulse?

how did the different stretches (densities) affect the velocity of the pulse?

( i dont have a slinky, and don't necessarily need the velocities, i just need the answers to the questions)