Continue with Microsoft TeamsLoudness
Sounds can be soft or loud. A sound will be louder when you are closer to the source. Sound will be softer when you are farther away. The loudness of a sound also depends on the size of the vibration. Large vibrations make loud sounds. Smaller vibrations make softer sounds. Try this experiment.
What You Need
- 2 elastic bands the same size, one thick and one thin; large enough to stretch around a shoe box
- A shoe box without a lid
What You Do
- Place the elastic bands around the box so they go over the opening. Leave some space between the two elastic bands.
- Pluck each elastic by lifting it up about 1 cm and letting go. Compare the sound made by each elastic. Answer questions 1 and 2 below.
- Lift one elastic band 1 cm, let go, and listen to the sound. Lift the same elastic band 2 cm, then 3 cm. Answer questions 3 and 4.
Show What You Know!
Complete some questions about the reading selection by clicking “Begin Questions” below.
