Activity 01
Rubber Band Guitar: String Tension and Length
Provide shoeboxes and rubber bands of varying thicknesses. Students stretch bands over the box, pluck to hear pitch, then adjust tension by pulling tighter or shorten length by pressing down. Record observations in a chart comparing high and low sounds.
How does the length or tension of a string affect the pitch of the sound it produces?
Facilitation TipDuring Rubber Band Guitar, remind students to pluck strings gently at the same spot to isolate tension effects.
What to look forPresent students with audio clips of different sounds (e.g., a bird chirping, a lion roaring, a child's laughter, a deep voice). Ask them to hold up one finger for high pitch and two fingers for low pitch. Discuss their choices.