What happens if you use thinner or thicker rubber bands? Do they sound different?
Thinner rubber bands produce higher-pitched sounds when plucked because they vibrate faster.
Thicker rubber bands produce lower-pitched sounds because they vibrate more slowly.
The thickness of the rubber band affects how quickly it vibrates, which in turn affects the pitch of the sound produced. Different thicknesses create different sound frequencies.
Explanation
Activity 2 demonstrates that plucking rubber bands makes them vibrate and produce sounds, which is sound energy. The 'Think' question encourages students to explore how different rubber band thicknesses affect the sound produced.
Solution Steps
Thinner rubber bands vibrate faster and produce higher-pitched sounds
Thicker rubber bands vibrate more slowly and produce lower-pitched sounds
The thickness of the rubber band determines vibration speed
Different thicknesses create different sound frequencies