What are 'vocal cords'?

Important Questions on Sound

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 1

In our body which part of the ear receives sound waves?

MEDIUM

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 2

What may happen if the ear drum is absent from our ear?

MEDIUM

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 3

What is the purpose of 'eustachian tubes'?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 4

What helps the sound in reaching our ears from our vocal cords when we speak or sing?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 5

Snakes do not have ears. How do snakes sense sound?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 1

What is noise pollution?

EASY

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 2

What may help with noise pollution?

MEDIUM

8th CBSE

IMPORTANT

SCIENCE For Class VIII>Chapter 13 - Sound>Test Your Learning Outcome>Q 3

What are the ill effects of noise?