Sound - Class 8 Science Workbook
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Q1 · MCQ · 1 mark
Sound is produced by __________.
Q2 · FILL · 1 mark
The number of oscillations per second is called the __________ of the sound.
Q3 · SHORT · 2 marks
What is the difference between normal sound and noise?
Q4 · MCQ · 1 mark
Which of the following units is used to measure the loudness of sound?
Q5 · FILL · 1 mark
The property of sound that determines its shrillness or flatness is called __________.
Q6 · SHORT · 2 marks
Why can astronauts not hear each other on the moon without special equipment?
Q7 · MCQ · 1 mark
Which of these materials is a good conductor of sound?
Q8 · FILL · 1 mark
The maximum displacement of a vibrating body from its mean position is called its __________.
Q9 · MCQ · 1 mark
Which part of the human ear vibrates when sound waves strike it?
Q10 · SHORT · 2 marks
Explain briefly why the voice of men, women, and children sounds different.