Sound Science Year 4 (England) | Baamboozle - Baamboozle

English 11 Public

Vibration, Frequency, Pitch, Volume and Echoes

Study Slideshow

What causes sound?

Vibrations

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What does 'vibration' mean?

shaking back and forth

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How does sound travel to our ears?

A sound wave of vibrations passes through the particles.

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Is sound quicker or slower to travel through solids?

Quicker!

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If I make my guitar string shorter, what happens to the note?

It gets higher in pitch.

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When vibrations are bigger, what happens to the sound?

The volume increases (it gets louder).

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When vibrations are faster, what happens?

The pitch (frequency) goes up - it gets higher.

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What units are used to measure volume?

decibels

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What is sound like in space?

There is no sound because there is no air.

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If I bang the table many times and measure the sound, will it be the same each time?

No, because it's impossible to hit it the same each time.

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If I have a small bell and a large bell, how will they sound different (two things!)?

The large one will be louder and deeper - bigger volume, lower pitch.

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