Object: To construct an inexpensive device to demonstrate transverse waves.

Materials: craft sticks, string, hot glue guns and, scissors

Procedure: Take two craft sticks, overlap them by about one each, and glue them together. Make about 50 pairs. Cut about two six foot lengths of string. Stretch the strings into two parallel rows about one to two inches apart. Glue the pairs of craft sticks to the strings. Separate the pairs about one inch from each other. Keep the rows straight. Leave about one foot of string at one end and use this to attach the wave demonstrator to the ceiling or wall. With the wave deonstrator freely hanging tap it and a transverse wave should be created.

Reference: The information for this lesson was obtained from a workshop sponsored byThe American Association of Physics Teachers

Materials: duplicating paper, tape, and scissors

Procedure: Using duplicating (or notebook) paper cut a strip of paper lengthwise about one inch wide. Twist the strip 180 degrees and tape the ends together so that loop is made. Take a pen or pencil and start drawing a line lengthwise along the length of the loop. Predict what should happen. Continue drawing the line and see what actually happens. If done correctly the line should have continued on both sides of the loop. Take the scissors and cut along the line. Predict what will happen. If done correctly a loop twice as long as the first loop will be created. Again draw a line lengthwise along the new longer loop. Take the scissors and begin cutting along this line. Predict what will happen. If done correctly two intertwined loops will be formed.