MEDIUM
8th CBSE
IMPORTANT
Earn 100

Explain that sound travels through solids.

Important Questions on Sound

MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 1>Q 7
_____ is measured in hertz.
HARD
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 1>Q 8
The hearing range of human ears is 20 Hz to 20,000 Hz.
HARD
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 6
How do our ears hear the sound?
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 7
What are the ill effects of noise pollution?
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 8
Sound can travel in vacuum also.
EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 8
Sound is produced when objects vibrate.
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 8
The unit of frequency is hertz.
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 9
Write the applications of ultrasound in our life.