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)

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.