Free CBSE Class 8 Science Sound Worksheets

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Sample CBSE Class 8 Science Sound Worksheet Questions

1.
Choose the correct option: The normal range of vocal cord in female is _________.
1. 20mm 2. 15mm 3. 40mm 4. 10mm
2.
Choose the correct option: The maximum displacement of a vibrating body from its mean position is known as ___________.
1. frequency 2. pitch 3. amplitude 4. time period
3.
Choose the correct option: 2 Hz is _________.
1. 1 vibration per minute 2. 120 vibrations per minute 3. 60 vibrations per second 4. 1 vibration per hour
4.
Choose the correct option: Vibrations in a body produces ________.
1. light 2. pressure 3. force 4. sound
5.
State True or False: Man can hear the sound of bats.
1. true 2. false
6.
Why the voices of men, women and children are different ?
7.
Write three sources of noise pollution.
8.
Why a sound cannot be heard on the moon?
9.
Why is lightning seen earlier and thunder is heard later when both take place in the sky at same time?
10.
Why trees planted along the roads reduce noise?

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