PROPERTIES OF SOUND

 INTENSITY  

         If a sound is loud or quiet (musical notes) 

 

TO THE SECOND 1 TO THE SECOND 58 WE CAN SEE A CRESSCENDO FROM A PIANO TO A MEZZOFORTE AND FINALI A FORTISSIMO 

 DURATION

If a sound is long or short 

THERS A EXAMPLE OF A LONG SOUND:

THERS A EXAMPLE OF A SHORT SOUND:

PITCH

If a sound is high or low

HIGH SOUND:

LOW SOUND:

TIMBER

What produce the sound 

NOISE:

THIS IS A NOISE BECAUSE IS MADE FOR IRREGULAR WAVES

SOUND:

 

THIS IS A SOUND BECAUSE IS MADE FOR REGULAR WAVES

 SOUND POLUTION

a) List the different types of noise pollution mentioned in the video.

- The traffic

- Industrial activity

b) What decibel level does the World Health Organization define as noise pollution? Is it the same for all cities and all public places?

- Any sound exceeding 65 Decibels is considered a noise. 

- No, that is up to the local councils

c) Describe four negative effects of noise pollution that have an impact on people’s health.

• Hearing loss : Prolonged exposure to loud or persistent noise can cause permanent hearing impairment, including noise-induced hearing loss.
• Sleep disturbances : Noise pollution can disrupt normal sleep and can form sleep problems such as imsonium.
• Stress and Anxiety : Chronic noise exposure can lead to increased stress levels, anxiety, and decreased quality of life.
• High Blood Pressure : Noise pollution has been linked to elevated blood pressure, which increases the risk of cardiovascular disease and stroke.

2. 

a) The property or parameter relating to time is seconds.

b) A loud or soft sound tells us about the intensity.

c) That voice sounds familiar; I hearing the timber.

d) His voice was so low that I could hardly hear it.

e) That siren was emitting a sound that was very high.

 TIME SIGNATURE

time signature organises in a regular way within a series of a beat

TIPES OF A TIME SIGNATURE:

DUPLE TIME 2/4 

EXAMPLE:

TRIPLE TIME 3/4 

EXAMPLE:

CUADRUPLE TIME 4/4

EXAMPLE:

    TO INDICATE THE TEMPO OF THE  MUSIC

WE USE:

LARGO   -   ADAGIO   -   ANDANTE   -   ALLEGRO   -   PRESTO 

very slow                                    ...                                          very fast

EXAMPLES:

1º EXAMPLE

This song is in presto 

2º EXAMPLE

This song is in andante

3º EXAMPLE

This song is in largo