Unit 8 the soundpdf

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Natural science. the sound

Transcript of Unit 8 the soundpdf

Page 1: Unit 8 the soundpdf

The sound

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Sound is a form of energy

This energy is called sound energy.

Sound energy can produce

changes in certain objects.

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Characteristics of sound

Every object emits a characteristics sound

when it vibrates.

1º IntensityA sound´s intensity can be:

soft

whisper

Loud

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Characteristics of sound

2º Pitch

A sound pitch is high

if the sound is produced

in a small area.

A sound pitch is low if

the sound is produced

in a large area.

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Characteristic of sound

3º Timbre

It is the quality of the sound

of a musical instrument or voice.

flute

saxophone

We can play

the same note

but it sounds

different.

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Spreading sound

The sound spreads until it reaches an object.

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The characteristic of how sound spread.

Sound travels in All directions

Sound spread in a straight line.

Sound travels 340 metres per second.

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MUSICAL INSTRUMENT CLASSIFICATION

String musical instruments

They are musical instruments that produce

sound by means of vibrating strings.

Classical

guitarHarp Viola banjo

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A percussion instrument is any

object which produces a sound

when it is hit.

MUSICAL INSTRUMENT CLASSIFICATION

Percussion musical instruments

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A wind instrument is a

musical instrument that

contains some type of

resonator (usually a

tube), in which a column

of air is set into vibration

by the player blowing

into a mouthpiece set

at the end of the

resonator.

MUSICAL INSTRUMENT CLASSIFICATION

Wind musical instruments

recorder

clarinet

bassoon

Double

bassoon