Go to the University of Colorado Boulder website and select the “Wave on a Sfring” simulation
(https://phet.colorado.edu/en/simulation/wave-on-a-string). You can activate it right in the window by
clicking on it. You can also download to your computer if you wish.

1. Quickly raise and lower the pipe wrench. What happens to the string?
2. Make sure you made a big enough wave for it to reach the clamp. Does it reflect off the clamp? If
   so, what is different about the wave?

When you quickly raise and lower the pipe wrench, you create a disturbance in the string that produces waves. These waves travel along the string, demonstrating how energy can move through a medium without the particles of the medium itself traveling long distances. You’ll notice that the string oscillates up and down, creating a visible wave pattern that illustrates fundamental principles of wave motion.

When you create a wave that reaches the clamp, you will indeed see that the wave reflects off the clamp. The reflected wave will be inverted, which means it will be flipped vertically compared to the original wave. This phenomenon occurs due to the boundary condition set by the clamp, acting as a fixed end. The behavior of waves at boundaries is crucial for understanding many physical systems, from musical instruments to seismic waves!