More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Science 7th Class Urdu Medium Chapter 9 Online Test MCQs With Answers
Question # 1
Speed of sound in water is
Choose an answer
1000 ms-1
1500 ms-1
900 ms-1
2000 ms-1
Previous
Skip
Next
Question # 2
Sound is a form of.
Choose an answer
Energy
Wave
Frequency
intensity
Previous
Skip
Next
Question # 3
The lowest pointof a wave is................
Choose an answer
Crest
Amplitude
Peak
Trough
Previous
Skip
Next
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
Previous
Skip
Next
Question # 5
Sound cannot pass through.
Choose an answer
Solid
Liquid
Vacuum
Gasses
Previous
Skip
Next
Question # 6
An object produce a sound with a frequency of 50 Hz. Find its tiem period.
Choose an answer
0.01 sec
0.03 sec
0.02 sec
0.04 sec
Previous
Skip
Next
Question # 7
The speed of sound in air is.
Choose an answer
100 m/s
300 m/s
100 m/s
330 m/s
Previous
Skip
Next
Question # 8
Dolphins can hear sound underwater from up to ............ away
Choose an answer
15 km
20 km
25 km
30 km
Previous
Skip
Next
Question # 9
------------ waves are produced in stretched string.
Choose an answer
Longitudinal wave
Elecromagnetic wave
Transverse wave
None of these
Previous
Skip
Next
Question # 10
What is transferred by teh movement of waves.
Choose an answer
matter
energy
both a and b
None of these
Previous
Skip
Next
Back