CBSE Class 8 Science Worksheet - Sound Part C

Scroll down for PDF

CBSE Class 8 Science Worksheet - Sound Part C - Practice worksheets for CBSE students. Prepared by teachers of the best CBSE schools in India.


GSc. Class - VIII




Q1. Fill in the blanks:

1. Sound is produced by ________________ bodies.

2. In humans, the sound is produced by the ____________.

3. Sound always travels through a ___________. It cannot travel in a ____________.

4. The thin membrane called _____________ present in our ears, senses the vibrations and sends them as signals to the _____________.

5. The no. of vibrations per second is called ______________. It is expressed in _____________.

6. Loudness of sound is proportional to the square of the ____________

7. Larger is the amplitude of vibration, the __________ is the sound.

8. Higher the frequency of vibration, the higher is the ____________.

9. A bird makes ____________ sound whereas a lion makes ___________ sound. (low pitched/high pitched)

10. For human ears, the range of audible frequency is from _____________Hz. to ______________ Hz.

Q2. Answer in one word:

1. Two important properties of any sound.

2. Time taken by a vibrating body to complete one vibration.

3. Vibrations of frequency higher than 20,000Hz.

4. Vibrations of frequency lower than 20 Hz.

5. The frequency of a vibrating body that makes 512 vibrations in a second.

6. Unwanted and unpleasant sounds.

7. It determines the shrillness or pitch of a sound.

8. Length of vocal chords in men.

9. Name any four causes of noise pollution our surroundings.

10. Name any two health related problems caused due to noise pollution.

Q3. Answer the following:

1. Describe how is sound produced by humans?

2. Explain how the human ear drum helps them to hear.

3. Define: a) Amplitude b) Time period c) Frequency

4. How is loudness of sound related to amplitude?

5. How is frequency of sound related to pitch?

6. What is noise pollution? How can it be controlled?

Students must free download and practice these worksheets to gain more marks in exams. CBSE Class 8 Science Worksheet - Sound Part C


Click on the text For more study material for Science please click here - Science

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Simple tips to Excel in Examinations

We are entering the last quarter of the Academic Session. With examinations just around the corner, I am sure all of us are carrying a mixed bag of Stress, Excitement, and Anxieties!! So, first and foremost- Let’s be Positive and Futuristic! It’s most important to...

CBSE examination board hike the fee for class 10th and 12th

The CBSE (Central Board Secondary Education) increased the examination fees for classes 10 and 12 of the 2020 boards, with no profit no loss principle, from Rs. 750 to Rs 1500, for all categories of students, including SC/ST candidates for all schools throughout India...

JEE in Punjabi too after English, Hindi and Gujarati

Punjab Minister Tript Rajinder Singh Bajwa requested the joint technology entrance exam (main) to be conducted in Punjabi and other regional languages too. In his letter to Union HRD Minister Ramesh Pokhriyal Nishank, the Punjab Minister for Higher Education and...

Studies Today