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WorksheetsUnit Test : Sound Part 2
Total questions: 20
Worksheet time: 40mins
They are called the loud and unpleasant sound.
(a)
Noise or sound can be measured by ______.
Sound meter level
Meter level sound
Sound level meter
Meter sound level
Which of the following is not part of the sound level meter?
Display screen
Panel keys
Microphone
Torch
What can a loud and high pitched sound break?
Metal
Glass
Plastic
Cloth
What is the unit of the loudness of the sound?
Hertz
Kilohertz
Decibel
Megahertz
Who invented the first telephone?
Robert Hooke
Albert Einstein
Isaac Newton
Alexander Graham Bell
Which of the following statement is true?
Soft sounds have high decibels.
Loud sounds have high decibels.
Soft sounds have a lot of energy.
None of the choices.
What is full meaning of this abbreviation: W.H.O relating to our topic about sound?
World Housing Organization
Why He's Out?
White House Officers
World Health Organization
According to WHO, which of the following is considered as dangerous sound level?
65 and above
75 and above
85 and above
None of the choices
What will happen to you if you listen to noises above 90 dB for a very long period of time?
Answer: You will become (a) .
Which of the following contributes to noise pollution?
Construction sites
Heavy metal rock music
Ambulance
All of the above
What can we do to reduce or prevent noise pollution?
I. Turn up the volume of your phone while using a headset.
II. Use ear protectors if you are inside a noisy place.
III. Stay away from the noisy area.
IV. Reduce the volume when listening to music.
I and II only
II and IV only
II only
II, III and IV only
What is the reason why the sound is loud when we hit the table?
Because we use more energy while hitting the table.
Because we use less energy while hitting the table.
Because the table as lesser molecules.
Because the table always creates loud sound even when you hit it softly.
What is the reason why the sound becomes softer/weaker when we walk further away from the sound source?
Because all of the energy are used up to pass along the vibrations from the source to our ears.
Because some of the energy are used up to pass along the vibrations from the source to our ears.
Because no energy is used up to pass along the vibrations from the source to our ears.
None of the choices
Which of the following can damage your ears the most?
95 dB
25 dB
140 dB
10 dB
Which of the following can create a soft sound?
Ant
Lion
Eagle
Whale
Which of the following can create a much louder sound?
Humming bird
Bee
Motorcycle
Ambulance
What will you do to make a loud sound using a drum?
Hit the drum softly.
Hit the drum using all your energy.
Don't ever hit the drum.
Hit the drum using a straw.
Which place do you think will have the highest decibel?
Library
Rock concert area
Living room
Museum
Which do you think will be the sound level of the rock concert area?
129 dB
30 dB
45 dB
10 dB
