Podcast
Questions and Answers
When the cone of a loudspeaker vibrates, it moves in and out very quickly, stretching and squashing the air in front of it. The stretches and squashes spread through the air like the ripples on a pond when you throw a stone into the water. These are ______ waves.
When the cone of a loudspeaker vibrates, it moves in and out very quickly, stretching and squashing the air in front of it. The stretches and squashes spread through the air like the ripples on a pond when you throw a stone into the water. These are ______ waves.
sound
When they reach our ears, sound waves make our eardrums vibrate and we hear a sound. The loudspeaker cone moves ______ and ______ wave.
When they reach our ears, sound waves make our eardrums vibrate and we hear a sound. The loudspeaker cone moves ______ and ______ wave.
backwards
Describe how a loudspeaker squashes the air in front of it. The air molecules are forced close together. This is called a ______.
Describe how a loudspeaker squashes the air in front of it. The air molecules are forced close together. This is called a ______.
compression
When the loudspeaker stretches the air, the molecules are spread out. This is called ______.
When the loudspeaker stretches the air, the molecules are spread out. This is called ______.
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Sound waves are a series of compressions and ______ between two compressions or two rarefactions.
Sound waves are a series of compressions and ______ between two compressions or two rarefactions.
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We can model sound waves by sending a wave down a long 'slinky' ______.
We can model sound waves by sending a wave down a long 'slinky' ______.
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Wavelength is the distance ______ wavelength.
Wavelength is the distance ______ wavelength.
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Did you know our high pitched ______ and clicks?
Did you know our high pitched ______ and clicks?
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When the cone of a loudspeaker vibrates, it moves in and out very quickly, stretching and squashing the air in front of it. The stretches and squashes spread through the air like the ripples on a pond when you throw a stone into the water. These are ______ waves.
When the cone of a loudspeaker vibrates, it moves in and out very quickly, stretching and squashing the air in front of it. The stretches and squashes spread through the air like the ripples on a pond when you throw a stone into the water. These are ______ waves.
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When they reach our ears, sound waves make our eardrums vibrate and we hear a sound. The loudspeaker cone moves ______ and ______ wave.
When they reach our ears, sound waves make our eardrums vibrate and we hear a sound. The loudspeaker cone moves ______ and ______ wave.
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Describe how a loudspeaker squashes the air in front of it. The air molecules are forced close together. This is called a ______.
Describe how a loudspeaker squashes the air in front of it. The air molecules are forced close together. This is called a ______.
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When the loudspeaker stretches the air, the molecules are spread out. This is called ______.
When the loudspeaker stretches the air, the molecules are spread out. This is called ______.
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Sound waves are a series of compressions and ______ between two compressions or two rarefactions.
Sound waves are a series of compressions and ______ between two compressions or two rarefactions.
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Wavelength is the distance ______ wavelength.
Wavelength is the distance ______ wavelength.
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