U2 L2 INTERACTIONS of sound waves

Echoes, Echolocation, temperature, and sonic booms

This is the Singing Ringing tree. The wind resonates through its pipes to make sound.

Echoes are reflected sound waves. They can help sound travel for miles.

If you shouted from this mountain people miles away would be able to hear you

Echoes are reflected sound waves that can travel for long distances. If a surface is soft it can fully silence a sound but if there is a hard surface it will create an echo.

A brick wall is an example of a hard surface

A wooden wall is an example of a soft dampening surface.

This is a stain glass window. It is portraying a dolphin using echolocation to navigate the ocean

Echolocation is useful to dolphins because it helps them hunt and navigate. Echolocation uses the sound that bounces of objects to pinpoint an objects location.

Resonance is a big part in our everyday lives

Musical instruments use a wave called a standing wave

A standing wave resonates in the instrument which makes a sound wave

Temperature has a very large effect on sound.

If the air is warmer than a sounds amplitude will be higher. If it is colder a sounds amplitude will be lower.

Sonic booms are made when objects carth up with there own sound.

Credits:

Created with images by Unsplash - "record player disk" • calydelphoto - "Singing Ringing Tree" • 1JENNYHERNANDEZ - "north carolina grandfather mountain mountain" • jeonsango - "brick wall rectangle" • Waldkunst - "roof boards wooden wall" • Ruth and Dave - "Dolphin sonar window" • rossination - "Tuba 6" • 422737 - "measuring station hydrometer thermometer"

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