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Energy Producing Sounds- Grade 5

Sounds are produced when we the following

a.   Clap our hands

b.   Stamp our feet

c.   When we whistle.

d.   When we hot a drum

e.   Playing guitar

 

Sound is the energy that things produce when they vibrate.

Loud and soft sounds

  • Volume is the amount of sound something produces.

  • It is the measure of the loudness of sound. Loud sounds are produced by big vibrations, while low sounds are produced by small vibrations.

  • The energy of a sound determines its loudness. The greater the energy the greater the sound.

  • Whispering makes a soft sound while shouting to a friend across a playground makes a loud sound.

  • Fire alarms and car’s horn are examples of loud sounds, while whispering to a friend and the sound of blowing wind are examples of soft sounds.


Identifying areas with loud sounds

Areas that produce loud sound in the environment include:

  1. Industries

  2. Music shops

  3. Markets

  4. Stadia (plural for stadium)


Sound pollution

Sound pollution is defined as sounds or noises that are loud, annoying and harmful to the ears.


Effects of sound pollution

 The effect of sound pollution on human health and behaviour include the following:

  1. Loss of Hearing - the immediate effect of noise pollution to a person, over a period of time is reduced hearing ability. Over a time, a person may completely lose his or her hearing.

  2. Poor Concentration - loud and continuous noise makes a person lose concentration on any activity that they are carrying out.

  3. Irritability - loud and continuous noise at home and at school may result in irritability which lead to aggressive behaviour.

  4. Sleep Disturbances - loud noise disturbs your sleep and keeps you awake.

  5. Interferences with Communication - loud noise makes people unable to communicate freely. You may find it difficult to understand or even hear what someone else is saying.


Protecting self from loud sound

  1. Turning down devices producing loud sound

  2. Using hearing protection devices when in a place with loud sound.

  3. Avoid areas with loud sound.

  4. Staying in houses with soundproof walls.


Project

Making earmuffs using locally available materials.

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