Sound
Sound
Natural sound
100

What's a sound?

a) it's an object

b) it's energy

It is energy

100

What are the main characteristics of a sound?

a) The main characteristics are Loudness, Pitch and Timber.

b) The main characteristics of a sound are length, loudness and strength.

a) The main characteristics are Loudness, Pitch and Timber.

100

Is an airplane a natural sound?

a) Yes

b) No

No

200

When is a sound produced?

a)A sound is produced when the vibration of an object travel through a solid, a liquid or a gaseous medium until they reach our ears.

b)A sound is produced when the ears of a person travel through a guitar, a violin or another instrument until they reach a vibration.

A sound is produced when the vibration of an object travel through a solid, a liquid or a gaseous medium until they reach our ears.

200

What's the name of the unit of measurement of the loudness?

a) hertz

b) decibel

 decibel

200

Is the sing of a whale natural?

a) Yes, it is.

b) No, it isn't

Yes, it is.

300

How many types of sound are there? 

a)There is only one type of sound. Natural.

b) There are two types of sound, natural and artificial

There are two types of sound, natural and artificial.

300

What is the hertz? 

a) The hertz is the unit of measurement of the loudness.

b) The hertz is the unit of measurement of the frequency

 The hertz is the unit of measurement of the frequency

300

Is the quack of a duck, natural?

a) Yes, it is.

b) No, it isn't

Yes, it is.

400

In which shape does a sound propagates?

a) Sound propagates in the shape of a rectangle.

b) Sound propagates in the shape of a wave.

Sound propagates in the shape of a wave.

400

What is the timber?

a) It is the tone quality, that permits to distinguish sounds.

b) it is the volume of a sound that permits to distinguish sounds.

 It is the tone quality, that permits to distinguish sounds.

400

Is the sound of a TV program natural?

a) Yes, it is

b) No, it isn't

No, It isn't