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Noise Pollution — Homi Bhabha Class 6 Physics MCQs with Solutions
Free Homi Bhabha Class 6 Physics Noise Pollution MCQs with step-by-step solutions (10 questions). Part of Sound. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Noise Pollution · easy · theory
Unwanted, unpleasant and very loud sound is called …
A. Music
B. Silence
C. Noise ✓ Correct
D. A whisper
Solution: Unwanted, unpleasant loud sound is called noise.
Q2 — Noise Pollution · easy · theory
Which of these is an example of a pleasant sound (not noise)?
A. Soft music ✓ Correct
B. A running factory machine
C. Bursting of loud crackers
D. Loud honking in a traffic jam
Solution: Soft music is pleasant to hear, while the others are unwanted loud noise.
Q3 — Noise Pollution · easy · theory
Which of these causes noise pollution?
A. Soft rainfall
B. Loudspeakers played at very high volume ✓ Correct
C. A quiet library
D. A gentle breeze
Solution: Very loud loudspeakers make unwanted noise, which causes noise pollution.
Q4 — Noise Pollution · easy · theory
Too much noise around us harms which sense organ the most?
A. The skin
B. The tongue
C. The ears ✓ Correct
D. The eyes
Solution: Loud noise mostly affects our ears and can damage our hearing.
Q5 — Noise Pollution · medium · theory
Which of these is a common source of noise pollution in a busy city?
A. Honking vehicles on the road ✓ Correct
B. A closed book
C. Trees in a park
D. A sleeping cat
Solution: Honking vehicles create a lot of unwanted loud sound, a common source of noise pollution.
Q6 — Noise Pollution · medium · theory
Which of these is a harmful effect of too much noise?
A. Stronger teeth
B. Better eyesight
C. Headache and loss of hearing ✓ Correct
D. Faster hair growth
Solution: Too much noise can cause headaches, stress and even loss of hearing.
Q7 — Noise Pollution · medium · theory
Which of these is a good way to reduce noise pollution?
A. Bursting more crackers
B. Not blowing vehicle horns unnecessarily ✓ Correct
C. Playing loudspeakers all night
D. Shouting instead of talking
Solution: Avoiding unnecessary honking cuts down noise and helps reduce noise pollution.
Q8 — Noise Pollution · medium · theory
Planting more trees along roads helps reduce noise pollution because trees …
A. Absorb and block some of the sound ✓ Correct
B. Make the sound louder
C. Create extra noise
D. Turn noise into light
Solution: Trees absorb and block some sound, so they help lower noise pollution.
Q9 — Noise Pollution · hard · theory
Loudness is measured in decibels (dB). Very high-decibel sounds heard for a long time are dangerous because they …
A. Make us grow taller
B. Cool down our body
C. Improve our hearing
D. Can damage our hearing ✓ Correct
Solution: Listening to very loud (high-decibel) sounds for long can damage the ears and reduce hearing.
Q10 — Noise Pollution · hard · theory
A hospital has a ‘Silence Zone’ sign near it. This is mainly to …
A. Make the area look nicer
B. Save electricity
C. Stop people from walking there
D. Protect patients from harmful noise so they can rest ✓ Correct
Solution: A silence zone keeps noise low so that patients can rest and recover in peace.