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Earn 100

Draw two things that make a loud sound.

Important Questions on We Hear Sound

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Our ears help us to
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Loud sounds do not harm the ear.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

Why is it improper to use loudspeakers at night?

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
What is noise? List three habits to reduce noise.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
_____ sounds are mostly loud. (Pleasant, Unpleasant)
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Very loud and unpleasant sound is called _____.
HARD
Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

The ratio of intensities between two coherent sound sources is 4 : 1. The difference of loudness in dB between maximum and minimum intensities when they interfere in space is :

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Which of the following vibrates in our body to produce sound? 
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
What is the noise?
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Which one the following is an irritating noise.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Select the odd one.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Sound of a ringing school bell is a _____ (soft, loud) sound.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
We and all other animals can hear the same sounds.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

Choose the correct word from the following:
(Pleasant, Warning, Loud, Sound, Noise)
_____ sound can cause stress and hypertension.

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

Sound that is loud and unpleasant is called  

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

Loud sounds are pleasant sounds.

MEDIUM
Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
We cannot hear any sound in the dark.
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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

Fill in the blank with a suitable word:

Unpleasant sounds are called _____ (noise/chirping).

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound

What is noise? 

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Environmental Studies>The World Around Me>We Hear Sound>Volume of Sound
Too much of _____ (light, noise) can damage our ears.