Anita Paul, Seema Sinha, Deepika Parashari and, Karuni Subrahmanyam Solutions for Exercise 3: Quick Check?

Author:Anita Paul, Seema Sinha, Deepika Parashari & Karuni Subrahmanyam

Anita Paul Science Solutions for Exercise - Anita Paul, Seema Sinha, Deepika Parashari and, Karuni Subrahmanyam Solutions for Exercise 3: Quick Check?

Attempt the practice questions from Exercise 3: Quick Check? with hints and solutions to strengthen your understanding. Galaxy A Course in Science Book 8 solutions are prepared by Experienced Embibe Experts.

Questions from Anita Paul, Seema Sinha, Deepika Parashari and, Karuni Subrahmanyam Solutions for Exercise 3: Quick Check? with Hints & Solutions

EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 13 - Sound>Quick Check?>Q a)

The outer ear is like a stretched membrane that vibrates on receiving sound.

MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 13 - Sound>Quick Check?>Q b)

 Sound propagates in the form of waves. 

EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 13 - Sound>Quick Check?>Q c)

Amplitude is the smallest distance moved by vibrating particles on either side of the mean position.

EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 13 - Sound>Quick Check?>Q d)

Increase in the number of vibrations in a given time increases the frequency.

EASY
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 13 - Sound>Quick Check?>Q e)

Human beings cannot hear sounds with frequencies less than 20 Hz.