SOUND

Test

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Âge recommandé: 11 ans

160 fois fait

Créé par

RAQUEL SANZ SANCHEZ

Spain

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RAQUEL SANZ SANCHEZ

15 Avril 2015

01:07

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Rózsa Földesiné Noviczki

25 Avril 2015

02:15

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SOUNDVersion en ligne Choose the right answer par RAQUEL SANZ SANCHEZ 1 Sound waves travel through... a the air, metal , water and vacuum. b the air, water, vacuum but not through metal. c water, air and metal but not through vacuum 2 The speed of sound depends on the medium through wich it travels a It is false. The speed of sound doesn´t change. b It is true, It travels faster through iron than through water or air c It is true, It travels faster through water or air than through iron 3 An echo is a reflection of a sound. It occurs when... a object located at a distance of at least 7 metres, and doesn´t returns to where it started. b object located at a distance of at least 27 metres, and returns to where it started. c a sound reflects off an object located at a distance of at least 17 metres, and returns to where it started. 4 If a sound is reflected from a shorter distance, it mixes with the original sound producing ... Written answer 5 Sound has three characteristics, they are: a Intensity, patch and timbre b Pitch, timbre and intensity c Strong, weak and high 6 Intensity is called too... a Voice b Volume c Frequency 7 We can measure pitch in.... a Herz b Decibels 8 Sound produces pain in human´s ears when... a It is less than 120 DB b It is higher than 120DB c at 50DB,it is quite noisy 9 Pitch is the quality of sound that depends on the frequency of vibrations a True b False Feedback 4 reverberation

SOUNDVersion en ligne

Choose the right answer

par RAQUEL SANZ SANCHEZ

Sound waves travel through...

the air, metal , water and vacuum.

the air, water, vacuum but not through metal.

water, air and metal but not through vacuum

The speed of sound depends on the medium through wich it travels

It is false. The speed of sound doesn´t change.

It is true, It travels faster through iron than through water or air

It is true, It travels faster through water or air than through iron

An echo is a reflection of a sound. It occurs when...

object located at a distance of at least 7 metres, and doesn´t returns to where it started.

object located at a distance of at least 27 metres, and returns to where it started.

a sound reflects off an object located at a distance of at least 17 metres, and returns to where it started.

If a sound is reflected from a shorter distance, it mixes with the original sound producing ...

Written answer

Sound has three characteristics, they are:

Intensity, patch and timbre

Pitch, timbre and intensity

Strong, weak and high

Intensity is called too...

Voice

Volume

Frequency

We can measure pitch in....

Herz

Decibels

Sound produces pain in human´s ears when...

It is less than 120 DB

It is higher than 120DB

at 50DB,it is quite noisy

Pitch is the quality of sound that depends on the frequency of vibrations

True

False

Feedback

reverberation