Unit 8 the soundpdf

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Natural science. the sound

Transcript of Unit 8 the soundpdf

The sound

Sound is a form of energy

This energy is called sound energy.

Sound energy can produce

changes in certain objects.

Characteristics of sound

Every object emits a characteristics sound

when it vibrates.

1º IntensityA sound´s intensity can be:

soft

whisper

Loud

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.

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.

Spreading sound

The sound spreads until it reaches an object.

The characteristic of how sound spread.

Sound travels in All directions

Sound spread in a straight line.

Sound travels 340 metres per second.

MUSICAL INSTRUMENT CLASSIFICATION

String musical instruments

They are musical instruments that produce

sound by means of vibrating strings.

Classical

guitarHarp Viola banjo

A percussion instrument is any

object which produces a sound

when it is hit.

MUSICAL INSTRUMENT CLASSIFICATION

Percussion musical instruments

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