Ms. Meg’s Physical Science
Physicist: Your Name Here
Score:
_______/15
Thinking Aloud (Sound)
An iThink Activity
Draw a picture of a sound wave and label it Wave #1. Label the following: amplitude, wavelength, trough, crest
In the following boxes, draw a new wave to show the changes below. You will compare all waves to Wave #1
1.
Draw a sound wave that is louder than the one in box #1.
2.
Draw a sound wave with a higher pitch.
3.
Draw the sound wave a whisper might produce.
4.
Draw a sound wave with a very low pitch.
Label this wave ‘Loud Sound’
Label ‘High Pitch’
Label ‘Whisper’
Label ‘Low Pitch’
Answer the following, using your diagrams:
What part of a wave changes when the pitch changes? _______________________________________________
What part of a wave changes when the amplitude changes? __________________________________________
The period of a wave is ________________________________________________________________________
What parts of a wave change when wave velocity changes? ___________________________________________
Finish the arrows to complete the following comparison so that it is scientifically correct:
When wave frequency goes
the wave period goes
and the wavelength goes
Behavior of Waves: Explain the science behind the behaviors of sound energy (waves) in your own words
Interference:
Destructive interference:
Constructive interference:
Doppler Effect Resonance Echo Sonar –
Challenge Questions: Choose any question on the back, and write a 1 paragraph answer using proper terms and clearly
showing that you understand the science behind the behavior.
Ms. Meg’s Physical Science

Sound always travels at the same (constant) speed in the same kind of material. What happens to the speed
of sound in different materials?

Explain how sound recording and reproducing devices work

Why does a whip snap when the wave reaches the end?

Why is there a time delay between a flash of lightning and the clap of thunder heard?
My Explanation:
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