ICSE ICSE Class 8 - CISCE Question Bank Solutions

In a cable, the green wire is the live wire.

A fuse is connected to the live wire.

A switch is connected to the neutral wire.

Match the following

Sound can not travel in

When sound travels in form of a wave

The safe limit of loudness of audible sound is

The unit of loudness is _______.

In a piano, pitch is decreased by

How does sound travel in air?

What is longitudinal wave?

A switch is connected to the .......... wire.

Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.

The red colour insulated wire in a cable is the .............. wire.

Define the following term:

Frequency

Obtain relationship between the time period and frequency.

Name three characteristics of a musical sound.

A fuse wire should have low .................

Which of the following determines the loudness of a sound wave?

How is loudness related to the amplitude of wave?