WorksheetsSound Class 8
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is the definition of Sound??
a)
Sound is a form of light energy.
b)
Sound is a form of matter.
c)
Sound is a form of electromagnetic radiation.
d)
Sound is a form of energy that is transmitted through vibrations or waves in a medium such as air, water, or solids.
2.
What do we mean by hertz??
a)
Hertz is a unit of voltage.
b)
Hertz is a unit of speed.
c)
Hertz is a unit of time.
d)
Hertz is a unit of frequency.
3.
What is the full form of SONAR??
a)
Sound Navigation and Ranging
b)
Sound Oriented Navigation and Ranging
c)
Sound Observation and Ranging
d)
Sound Noticle and Orientation
4.
In Sound, What is the unit for measuring time period?? ( small letters only )
(a)
5.
What is the range of a sonic sound in hertz??
a)
20 Hz - 20,000 Hz
b)
10 Hz - 10,000 Hz
c)
100 Hz - 100,000 Hz
d)
50 Hz - 50,000 Hz
6.
What is a galton whistle??
a)
A galton whistle is a type of musical instrument.
b)
A galton whistle is a type of bird call.
c)
A galton whistle is a type of measuring tool used in construction.
d)
A galton whistle is a type of whistle invented by Sir Francis Galton.
7.
What makes a sound a music??
a)
The absence of any musical elements in a composition.
b)
An Unpleasant sound containing irregular patterns.
c)
The random combination of sounds without any structure or meaning.
d)
A pleasant sound containing repeating patterns that calm down the human brain cells.
8.
Diffrentiate between music and noise.
a)
Music is pleasant to listen to, while noise is unpleasant.
b)
Music is created by humans, while noise is natural.
c)
Noise is useful, while Music disturbs the human ear.
d)
Music is random and chaotic, while noise is organized and structured.
9.
In Which Medium, sound propogates the maximum? ( small letters only )
(a)
10.
What is the SI Unit of amplitude?
a)
meters (m)
b)
liters (L)
c)
seconds (s)
d)
kilograms (kg)
100 %
