General Science Important Questions Chapter 13 Class 6 Maharashtra Board

Imp Questions For All Chapters – General Science Class 6

Sound

Short Questions

1. What is necessary for sound production?
Answer : Vibration

2. What is the source of a sound?
Answer : An object that vibrates

3. What is the unit of sound intensity?
Answer : Decibel (dB)

4. What is the science of sound called?
Answer : Acoustics

5. Which organ helps us hear sound?
Answer : Ear

6. What happens when vibrations stop?
Answer : Sound stops

7. Which part of the ear vibrates to hear sound?
Answer : Eardrum

8. What is noise?
Answer : Unpleasant or unwanted sound

9. What is noise pollution?
Answer : Too much loud and harmful noise

10. Name a place where noise is prohibited.
Answer : Hospitals

11. How does sound travel?
Answer : In waves

12. Which medium carries sound best?
Answer : Solid

13. Which musical instrument uses stretched strings to make sound?
Answer : Sitar

14. What happens when you stretch and pluck a rubber band?
Answer : It vibrates and makes sound

15. Which sound is soft – whispering or shouting?
Answer : Whispering

Long Questions

1. What is vibration? Give an example.
Answer : Vibration is the back-and-forth movement of an object. For example, when we pluck a guitar string, it vibrates and produces sound.

2. How does sound travel through solids?
Answer : Sound travels faster in solids than in air. For example, if you put your ear on a table and someone taps on it, you will hear the sound clearly.

3. What are the effects of noise pollution?
Answer : Noise pollution can cause stress, irritation, lack of concentration, and even hearing problems. It disturbs people and animals.

4. How can we reduce noise pollution?
Answer : We can reduce noise pollution by avoiding unnecessary honking, lowering TV or radio volume, and planting more trees to absorb sound.

5. What is the function of the eardrum?
Answer : The eardrum vibrates when sound waves reach it. These vibrations are sent to the brain, which helps us hear the sound.