8. Attach a light string about 1 meter in length to the far end of the spring and hold the end of the string instead of the spring. (This now represents a free end instead of a fixed end.) Send a wave towards them and observe the reflected pulse. What observations can be made? Be sure to include the direction of amplitude and the value of amplitude.

9. Create a standing wave in your slinky. To do this have one person hold one end securely and the other person rapidly shake one end until they find a frequency where the slinky forms loops that don't change position. Have me check this.