EASY
9th CBSE
IMPORTANT
Earn 100

Draw labelled diagrams to represent sound of low pitch, and high pitch, of the same loudness.

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 49

What is meant by the quality (or timbre) of sound? On what factor does the quality (or timbre) of a sound depend?

EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 50
Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a loud sound is heard
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 51
Give one use of ultrasound in industry and one in hospitals.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 52
How is it that bats are able to fly at night without colliding with other objects?
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 53
Explain how, bats use ultrasound to catch the prey.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 54
Explain how, flaws (or defects) in a metal block can be detected by using ultrasound.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 55
Why are the ceilings of concert halls made curved? Draw a labeled diagram to illustrate your answer.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 56
Draw a labeled diagram to show the multiple reflection of sound in a part of the stethoscope tube.