Volume
Volume is how loud or quiet a sound is. Bigger vibrations = louder sound.
Pitch
Pitch is how high or low a sound is. Faster vibrations = higher pitch.
Measuring loudness
We measure volume in decibels (dB). A whisper is about 20 dB, normal talking 60 dB, a rock concert 110 dB.
🔑 Key Terms
- Volume
- How loud or quiet a sound is.
- Pitch
- How high or low a sound is.
- Decibel (dB)
- The unit used to measure how loud a sound is.
Did you know?
A blue whale's call can reach 188 dB — louder than a jet engine!
Try it at home: Rubber band guitar
- Stretch a rubber band over an empty tissue box.
- Pluck it — that's one pitch.
- Stretch it tighter and pluck again — the pitch goes up!