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Online Tests
Science 7th Class Urdu Medium Chapter 9 Online Test MCQs With Answers
Question # 1
Which of the following animals can respond to lowest frequency.
Choose an answer
Cat
Cow
Dog
Dolphin
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Question # 2
Dolphins can hear sound underwater from up to ............ away
Choose an answer
15 km
20 km
25 km
30 km
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Question # 3
What is transferred by teh movement of waves.
Choose an answer
matter
energy
both a and b
None of these
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Question # 4
Which of the following features is the height of the wave from the rest position or mid line.
Choose an answer
Frequency
Wavelength
Amplitude
Pitch
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Question # 5
What type of wave does not need matter to travel through.
Choose an answer
Mechaical
Electromagnetic
Sound
Transverse
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Question # 6
An object produce a sound with a frequency of 50 Hz. Find its tiem period.
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0.01 sec
0.03 sec
0.02 sec
0.04 sec
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Question # 7
Sound cannot pass through.
Choose an answer
Solid
Liquid
Vacuum
Gasses
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Question # 8
Sound waves are not.
Choose an answer
Compressional waves
Transverse waves
Mechnical waves
Low frequency waves
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Question # 9
Wave are of .............. types.
Choose an answer
Two
Three
Four
Five
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Question # 10
Sound is a form of.
Choose an answer
Energy
Wave
Frequency
intensity
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