Chapter 2: Energy and Its Forms

Energy can travel in the form of wavelength.

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You can measure wavelength by finding the distance between two crests.

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The trough is the highest point waves.

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The top of a wave is called a crest.

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Any matter that vibrates can make sound.

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Volume never depends on how far away a listener is from the sound.

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A bird makes a lower sound than a lion.

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Sound waves have different properties.

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The sound waves lose energy as they travel away from the siren.

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All matter is made up of small particles that have electric charges.

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