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Longitudinal wave

physical science Maturity 7-9

Some waves move in a line.

Onde compression impulsion 1d 30 petit.gif
Onde compression impulsion 1d 30 petit.gif
They push and pull the air. This makes a sound. You can hear it with your ears. It is like a toy spring moving.
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Ondes compression 2d 20 petit.gif
Can you hear a sound now?

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File:Onde compression impulsion 1d 30 petit.gif
Onde compression impulsion 1d 30 petit.gif
File:Ondes compression 2d 20 petit.gif
Ondes compression 2d 20 petit.gif
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📚 Content adapted from Wikipedia | Readability: FK 15.1 | Vital Level 5