Sound: Pitch and Volume

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

criteria
iteration

Materials Needed

aluminum foil
ruler
markers
popsicle sticks
pennies

Safety First

Clean up spills immediately to prevent slipping.

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?