Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 4: ASSESSMENT ZONE

Author:Anita Sood, Anupama Bhandari, Madhabi Bose & Shelly Wadhwa

Anita Sood Science Solutions for Exercise - Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 4: ASSESSMENT ZONE

Attempt the free practice questions from Exercise 4: ASSESSMENT ZONE with hints and solutions to strengthen your understanding. Expanded Universal Science solutions are prepared by Experienced Embibe Experts.

Questions from Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 4: ASSESSMENT ZONE with Hints & Solutions

EASY
8th CBSE
IMPORTANT

Match the following.

Column A Column B
1. Speed of sound through steel  a. String instrument
2. Drum  b. Wind instrument
3. Flute  c. Nearly 1500 m/s
4. Guitar  d. Nearly 6000 m/s
5. Speed of buzzing sound of a bee  e. Percussion instrument

 

EASY
8th CBSE
IMPORTANT

A metallic ruler is struck by an astronaut on the surface of moon. Will the ruler vibrate?

EASY
8th CBSE
IMPORTANT

A metallic ruler is struck by an astronaut on the surface of the moon. Will the ruler produce sound?

EASY
8th CBSE
IMPORTANT

Mention any three sources of noise pollution.

EASY
8th CBSE
IMPORTANT

Which characteristic of the sound will help us to distinctly identify the sounds of different instruments playing at the same amplitude and frequency?

EASY
8th CBSE
IMPORTANT

Which of the following sound waves produces a high pitch sound and a low pitch sound?

Question Image

EASY
8th CBSE
IMPORTANT

Which of the following sound waves produces a high pitch sound and a low pitch sound?

Question Image

EASY
8th CBSE
IMPORTANT

The buzzing sound of mosquito is produced when it vibrates its wing at an average rate of 600 vibrations per second. What is the time period of the vibrations of each wing (in seconds)?
(Write only value).