Connect sounds with vibrations
The idea
A vibration is a repeated back-and-forth motion.
Step by step
- A vibration is a repeated back-and-forth motion.
- A vibrating object can make the surrounding material vibrate, carrying sound.
- Compare what happens before and after a vibrating source is gently stopped.
Example
A plucked rubber band moves back and forth while making sound. What motion is this?
Answer
vibration
Repeated back-and-forth motion is a vibration.
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5 questionsTry it together
With an adult, pluck a thick rubber band stretched safely around a box. Observe how touching it changes the sound.
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