Sound: Pitch and Volume (Part 3)

What You'll Learn

Sound waves have properties including amplitude (loudness), frequency (pitch), and wavelength. Higher frequency means higher pitch. Greater amplitude means louder sound.

Key Words

prototype
design
constraint

Materials Needed

paper clips
rubber bands
string
cups
aluminum foil
ruler

Safety First

Keep small objects away from young children.
Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Dispose of materials properly after the experiment.

Steps

Step 1 — Read

Read and learn: Sound waves have properties including amplitude (loudness), frequency (pitch), and wavelength. Higher frequency means higher pitch. Greater amplitude means louder sound.

Step 2 — Do

Repeat the experiment two more times for accuracy.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal.

Check Your Understanding

Question 1

1 of 3

Can sound travel through a vacuum?