MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
Earn 100

Sketch larynx and explain its function in your own words.

Important Questions on Sound

EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
If the amplitude of vibration is large, sound is feeble.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
For human ears, the audible range is 20 Hz to 20,000 Hz.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
The lower the frequency of vibration, the higher is the pitch.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 3
Noise pollution may cause partial hearing impairment.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 4
Time taken by an object to complete one oscillation is called _____ . (Duration, Time period)
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 4
Loudness is determined by the _____ of vibration.
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 5 - Sound>Exercises>Q 13
Lightning and thunder take place in the sky at the same time and at the same distance from us. Lightning is seen earlier and thunder is heard later. Can you explain why?