TRUE / FALSE
1.One compression and one rarefaction together make two waves
2.Pitch is related to the loudness of sound.
3. If the amplitude is large, the sound is loud
4. Air molecules travel along with the sound wave.
4. A sound with frequency greater than 20 Hz is called ultrasonic
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I didn't understand their questions sorry
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Answer:
4. Air molecules travel along with the sound wave its true.
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