Question: As sounds move through the air ( its medium ) , something will happen with the air molecules. a ) Draw a sound wave and

As sounds move through the air (its medium), something will happen with the air molecules.
a) Draw a sound wave and explain what happens with the air molecules. Use the terms compression and expansion. (3)
b) What is interference? What two types of interference do you know? Use a sketch to illustrate the difference. (3)
As sounds move through the air ( its medium ) ,

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