WorksheetsG8-PHY-L5 Sound
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
How do we come to know that someone is at our door?
a)
By seeing them through a window
b)
By hearing the sound of the doorbell
c)
By smelling their perfume
d)
By feeling the vibrations on the floor
2.
What is the purpose of the blindfold in the game of hide and seek?
a)
To make the game more challenging
b)
To prevent the blindfolded person from cheating
c)
To help the blindfolded person guess the closest player
d)
To make the blindfolded person dizzy
3.
What is the role of sound in our lives?
a)
To help us see better
b)
To communicate with one another
c)
To create beautiful artwork
d)
To scare away animals
4.
What do you feel when you touch a school bell when it is not producing sound?
a)
Vibrations
b)
Heat
c)
Cold
d)
Nothing
5.
What happens when a tightly stretched band is plucked?
a)
It produces sound
b)
It becomes silent
c)
It starts vibrating
d)
It breaks
6.
What happens when you strike a metal dish at its edge?
a)
You hear a sound
b)
The dish becomes hot
c)
The dish starts spinning
d)
The dish breaks
7.
What do you observe on the surface of water when you strike a vibrating dish?
a)
Ripples or waves
b)
Bubbles
c)
Steam
d)
Nothing
8.
What is the connection between sound and the vibrations of a body?
a)
Sound and vibrations are unrelated
b)
Vibrations create sound
c)
Sound creates vibrations
d)
Vibrations and sound are the same thing
9.
Which part of the human body is responsible for producing sound?
a)
The nose
b)
The mouth
c)
The ears
d)
The voice box or larynx
10.
What is the function of the eardrum?
a)
To amplify sound
b)
To filter out unwanted noise
c)
To convert sound into electrical signals
d)
To vibrate and transmit sound to the inner ear
11.
What determines the pitch of a sound?
a)
The amplitude
b)
The frequency
c)
The loudness
d)
The medium through which it travels
12.
What determines the loudness of a sound?
a)
The amplitude
b)
The frequency
c)
The pitch
d)
The medium through which it travels
13.
What is the difference between noise and music?
a)
Noise is loud, music is soft
b)
Noise is unpleasant, music is pleasant
c)
Noise has a high pitch, music has a low pitch
d)
Noise is produced by machines, music is produced by humans
14.
What are some sources of noise pollution?
a)
Birds chirping
b)
Construction sites
c)
Soft whispers
d)
Classroom discussions
15.
What health problems can be caused by noise pollution?
a)
Lack of sleep
b)
Increased appetite
c)
Improved concentration
d)
Enhanced relaxation
16.
How can noise pollution be controlled in a residential area?
a)
By planting trees to reduce sound
b)
By increasing the volume of loudspeakers
c)
By conducting noisy activities near residential areas
d)
By using more horns on vehicles
17.
What is the range of audible frequencies for the human ear?
a)
20 to 200 Hz
b)
20 to 20,000 Hz
c)
20 to 2,000,000 Hz
d)
20 to 200,000,000 Hz
18.
What is the purpose of a silencing device in controlling noise pollution?
a)
To amplify sound
b)
To filter out unwanted noise
c)
To convert sound into electrical signals
d)
To reduce the intensity of sound
19.
What is the purpose of running air conditioning systems at low volumes to control noise pollution?
a)
To amplify sound
b)
To filter out unwanted noise
c)
To convert sound into electrical signals
d)
To reduce the intensity of sound
20.
What is the purpose of planting trees along roads and around buildings to control noise pollution?
a)
To amplify sound
b)
To filter out unwanted noise
c)
To convert sound into electrical signals
d)
To block or absorb sound waves
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