Tag: pleasant, unpleasant sounds and noise pollution

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Questions Related to pleasant, unpleasant sounds and noise pollution

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Unpleasant sound : Noise : : Pleasant sound :______. Fill in the blank. 

  1. Audible sound

  2. Infrasound

  3. Music

  4. Ultrasound
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sounds that are unpleasing and disturbing to the ears are called noise, whereas, the pleasing and comforting to the ears are called music, like those produced by musical instruments.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Which of the following are examples of noise pollution?

  1. Sounds from factories

  2. Sounds from explosion of fire crackers

  3. Sounds from aircrafts

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The sounds from factories, fire crackers, aircraft, etc. are much above $80$ dB, which is the level above which noise causes discomfort and becomes physically painful.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

What measures must be taken to reduce noise pollution?

  1. Noise creating factories must be set up away from residential areas.

  2. Trees must be planted around buildings to reduce the noise from reaching the buildings.

  3. Silencing the devices and automobiles making loud noises.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is very important to reduce noise pollution since it may cause serious health problems. Thus, various methods have to be adopted to reduce noise pollution like minimizing the sound coming from T.V., radio, etc., silencing automobiles, creating factories only in industrial areas, planting trees to block the noise etc.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Which of the following are true for noise pollution?
a) Noise pollution is unpleasant and discomforting.
b) Noise pollution can cause health problems.
c) Long term exposure to loud noises can cause temporary or ever permanent hearing impairment.

d) Noise pollution is caused by extremely loud sounds.

  1. a and d

  2. b and c

  3. a, b and d

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution is caused by extremely loud sounds and is very discomforting and painful for the ears. It may also cause health problems like hypertension, lack of sleep, anxiety and many more. Also, continuous exposure to loud sounds can cause temporary or permanent hearing defect.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Which of the following measure can be taken to control noise pollution in our surroundings?

  1. By using silencers in vehicles

  2. Planting trees

  3. Using noise mufflers

  4. All
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution can be reduced by using silencers in vehicles, industrial machines, and home appliances reducing use of vehicle horns, running TV, radio and music systems at low volumes. Planting of trees along roads and buildings also help to reduce noise pollution.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Noise pollution can be harmful to human beings because:

  1. it can cause hearing loss

  2. it can cause sleeplessness

  3. can cause hypertension

  4. all
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Noise pollution can lead to a number of health-related problems. Some of them are as follows:
(i) Hearing loss

(ii)inability to sleep    
(iii) Hypertension
(iv) Severe headache 
(v) Stress

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Why Trees are  planted along the roads?

  1. To make the roads beautiful.

  2. To reduce noise pollution.

  3. To provide shade.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Trees absorb the sound vibrations produced by various sources and hence leading in prevention of noise pollution. It also provide shades and make the roads beautiful.