EASY
7th ICSE
IMPORTANT
Earn 100

Give two examples of bad reflectors of sound.

Important Questions on Sound

EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>Check Your Progress!>Q 2

Choose the correct option.

Time period of a vibration is the reciprocal of its

EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>Check Your Progress!>Q 2
As the distance between the listener and the source increases, loudness of sound
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>Check Your Progress!>Q 1

Choose the correct option.
Which of these is a good reflector of sound?

EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>Check Your Progress!>Q 3

Choose the correct option.

Galton's whistle is a whistle that can produce frequencies greater than

EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>EVALUATION>Q 6
What is an echo? Where does echo generally occur?
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>EVALUATION>Q 1
Prove with the help of an activity that sound travels better through liquids.
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>EVALUATION>Q 1
Two astronauts were floating near each other in space. Do you think they will be able to talk to each other?
EASY
7th ICSE
IMPORTANT
FRANK NEW CERTIFICATE - Physics>Chapter 6 - Sound>EVALUATION>Q 2
How do animals such as elephants and whales communicate?