Click on the Green flag and watch the particle in the slit oscillate up and down. In a transverse wave, the medium that waves (for example water) oscillates at right angles to the direction of the wave. Image you are floating on a tube in a large body of water, on a windless day, far from the waves breaking on the shore. As each wave passes over you, you notice that you just bob up and down as the wave passes by and are you are not getting any closer to the shore.The energy in the wave caused you to bob but released its energy when it crashed against the shore. In a longitudinal wave (sound) the particles oscillate back and forth along the longitudinal axis of the wave. This project was an illustration in a physics book (1960). As students, we ] made a slit from two file cards and moved the strip along the wave to see the same effect as seen in this project. Back then, I thought this was pretty cool. Light is a transverse wave. Sound is a longitudinal wave.
This project simply added the two rectangles to form the slit. The sine wave itself is a remix of pokepedia11's project Sine Wave Simulator seen here: https://scratch.mit.edu/projects/97017197/ Thanks peokepedia!
