MEDIUM
7th ICSE
IMPORTANT
Earn 100

Write the approximate speed of sound in steel.

Important Questions on Sound

HARD
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 34
During a thunderstorm, the sound of a thunder is heard after the lightning is seen. Why ?
HARD
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 36
Can sound travel through solids and liquids? In which of these two does it travel faster?
MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 37
What do you mean by reflection of sound ?
MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 38
State one use of reflection of sound.
MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 39
What is echo ?
HARD
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 40
What minimum distance is required between the source of the sound and the reflecting surface to hear an echo? Give reason.
HARD
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 42
List the measures that you will take when designing a sound-proof room.
HARD
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 6 - Sound>TEST YOURSELF>Q 1
A boy fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 3 s after seeing its smoke. Find the speed of sound.