Last updated on October 22nd, 2023 at 09:09 pm
Maharashtra Board Class 6 Science Sound Textbook BackPage Exercises which includes Fill in the blanks ,Question Answers and Extra Question and Answers from the Chapter.
Fill in the blanks with the proper words.
- The propagation of sound does not occur through a vacuum.
- Noise pollution is a social issue.
- The sound which is disagreeable to the ears is called noise.
- Noise has adverse effects on our health.
What should we do ?
The silencer of a motorcycle is broken.
To reduce the noise generated by a motorcycle, it is recommended to have the silencer of the motorcycle repaired or replaced if it is broken.
A factory in the surroundings is producing continuous loud noise.
If you live near a factory that makes loud noise, you should take these steps:
Report it to the local authorities or environmental agencies.
Make sure the factory follows any noise rules in your area.
Talk to factory management about the noise problem and see if they can soundproof or run quieter machines to reduce it.
Educate your community about this issue and advocate for strict noise control.
If noise keeps you from sleeping, wear ear protection.
Write the answers in your own words.
What is meant by vibration ?
It is the continuous movement of an object that produces sound, such as the diaphragm or vocal cords in a speaker, that constitutes vibration.
Explain with the help of practical examples how sound is propagated through solids.
The sound propagates through solids when vibrations from one end cause molecules or particles to vibrate in a chain reaction, resulting in sound transmission. Whenever you tap a metal rod on a table, vibrations travel through it, causing the metal rod to resonate and produce a sound.
What is meant by noise pollution?
There are many sources of noise pollution, including industrial processes, traffic, construction, and other human activities. Noise pollution is excessive, unwanted, or disruptive noise in the environment. Loud, unpleasant or irregular sounds can adversely affect health and quality of life.
What measures will you take to control noise pollution ?
To control noise pollution, the following measures can be taken:
1. As far as possible, we should avoid blowing the horn.
2. The volume of the TV or radio in the house should be restricted to those watching the programmes.
3. Vehicles should be maintained properly to reduce the unnecessary sounds they produce.
4. Factories, airports, railway stations and bus stands should be located at the proper distance, away from residential areas.
