E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 4: Exercises

Author:E Doris James, Vandana Tirath, Anton Siromani & Kiran Banerji

E Doris James Science Solutions for Exercise - E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 4: Exercises

Attempt the practice questions from Exercise 4: Exercises with hints and solutions to strengthen your understanding. New Science Ahead 8 solutions are prepared by Experienced Embibe Experts.

Questions from E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 4: Exercises with Hints & Solutions

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q E

Human speech is possible due to the passage of air through the oesophagus.

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q E

The absorption and slow release of sound waves by surfaces cause echoes.

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q E

Sound of frequency above 20,000 Hz is called ultrasonic sound.

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q E

Excessive noise can cause deafness.

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q E

Curtains, cushions and rugs in a room absorb sound.

MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q F

Describe the structure and function of the eardrum.

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q F

What kind of material can be used in the house to make it more soundproof?

MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Exercises>Q G

What are the characteristics of vibrations? Describe them.