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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
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MCQ Questions for CBSE Class 1 with Answers
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Oscillations and Waves Class 7 MCQ Questions With Answers
1.
The wave can propagate without any medium. It is the characteristic of these waves, except . . . .
Light
Electromagnetic wave
Infrared
Sound wave
2.
The maximum displacement of a point of a wave from its rest position or equilibrium point is called . . . .
Amplitude
Frequency
Crests
Period
3.
The range audiosonic frequency is . . . .
20 - 2000 Hz
10 - 10 000 Hz
20 - 20 000 Hz
20 - 10 000 Hz
4.
The number of waves passing a point each second is . . . .
Period
Longitudinal waves
Frequency
Wavelength
5.
Calculate the time period of a wave with a frequency of 50 Hz.
50 seconds
5 seconds
0.2 second
0.02 second
6.
From the following image, what is its frequency?
20 Hz
10 Hz
0.5 Hz
0.05 Hz
7.
A pendulum is observed to complete 30 full cycles in 120 seconds. Determine the period of the pendulum.
90 seconds
6 seconds
4 seconds
0.25 second
8.
Jovian screams near a canyon and can hear his echo 3 seconds later. If the speed of sound at that time is 300 m/s, what is the distance between Jovian and the canyon>
900 m
300 m
150 m
100 m
9.
We know that the wavelength is 20 m. If the time period is 0.5 second, the wave speed is . . . .
40 m/s
20 m/s
10 m/s
5 m/s
10.
A pendulum swings 5 times in a second. What is its frequency?
0.2 s
0.5 s
1.0 s
5.0 s
11.
A violin string could vibrate with frequency of 1 kHz. The time period is . . . .
1000 s
10 s
0.1 s
0.001 s
12.
Jason heard a thunder 2 seconds after he saw the lightning. If the speed of sound is 300 m/s, what is the distance between Jason and the lightning?
600 m
302 m
300 m
150 m
13.
If the pendulum goes from A to C in 1 second, what is the period of the oscillation?
0.5 s
1.0 s
1.5 s
2.0 s
14.
Wave period means . . . .
the highest point above the rest position
the time taken for a full cycle of the wave
the maximum displacement of a point of a wave from its rest position
the number of waves passing a point each second
15.
A change of amplitude will change:
the wavelength
the loudness
the frequency
the pitch
16.
An imaginary line that is perpendicular to any surfaces is called . . . .
imaginary line
vertical line
normal line
straight line
17.
From the following image, what is the period of this wave?
5 seconds
10 seconds
15 seconds
20 seconds
18.
A sound wave has a frequency of 50 Hz. If its wavelength is 3 m, calculate its wave speed.
16.7 m/s
60 m/s
75 m/s
150 m/s
19.
A pendulum has a time period of 0.4 s. What is its frequency?
0.4 Hz
1.0 Hz
2.5 Hz
4.0 Hz
20.
In centimeters, what is the amplitude of the wave?
0 cm
10 cm
15 cm
30 cm
21.
Bunyi pantulan yang terjadi hampir bersamaan dengan bunyi asli dan terdengar saling bertumpuk disebut dengan . . . .
Gaung
Gema
Akustik
Feedback
22.
Look at the following figure. The wavelength of the transverse wave is . . . .
10 m
20 m
30 m
40 m
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