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CBSE class 8 sound

Authored by Bhavika Turakhia

Science

8th Grade

Used 302+ times

CBSE class 8 sound
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18 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sound is caused by:

waves.

vibrations.

heat.

air.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elephants can make sounds of high intensity. These sounds will be:

quiet.

high.

soft.

loud.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The tweeting sound made by a small bird has a pitch that is:

soft.

high.

low.

quiet.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Frequency:

is the amplitude of the vibrations.

is measured in metres.

is the number of vibrations each second.

affects how loud a sound is.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sound cannot travel though empty space because:

air particles stay still.

there are no particles to vibrate.

particles pass on vibrations.

electricity sends it through the air.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which list is in the correct order to show the speed of sound in different materials, starting with the slowest?

solids, liquids, gases

solids, gases, liquids

gases, liquids, solids

liquids, solids, gases

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do all waves transfer?

energy only

energy and matter

matter only

energy and particles

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