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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
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Oscillations and Waves Class 11 MCQ Questions With Answers
1.
A person is standing still and listening to a siren sounding an alarm. The frequency of the sound is 500 Hz. The person begins running toward the sound at a rate of 20 m/s. The frequency of the sound the person hears will
decrease
remain the same
increase
change by 20 Hz.
2.
The lowest pitch the average human can hear is about 20.0 Hz. If sound with this frequency travels through air about 300 m/s, What is its wavelength?
15
6000 m
15 m
6000
3.
An object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its kinetic energy is a maximum?
at either A or B
midway between A and B
one-third of the way between A and B
one-fourth of the way between A and B
4.
Sound is an example of a
transverse wave
longitudinal wave
focal wave
electromagnetic wave
5.
A student holds two vibrating objects. Object A is vibrating faster than object B. Which statement is true?
A is louder than B
B is louder than A
A will have a higher pitch than B
B will have a higher pitch than A
6.
An ideal spring with a constant of 200 N/m is acted upon by a 500 N force directed in the positive direction. What is the magnitude and direction of the displacement?
0.4 m
-0.4 m
2.5 m
-2.5 m
7.
A(n) _____ is a good mathematical model for representing transverse waves.
tangent curve
exponential curve
parabolic curve
sine curve
8.
An object attached to one end of a spring makes 20 complete vibrations in 10s. Its period is:
0.50 s
2 s
0.5 Hz
2 Hz
9.
Which position shows the spring with maximum gravitational potential energy?
A
B
C
D
10.
Which material does sound travel the fastest?
solid
liquid
gases
11.
What is common with all electromagnetic and mechanical waves?
They travel at the same speed
They transfer energy
They are all longitudinal waves
They are all transverse waves
12.
A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.
2 sec
12 sec
8 sec
10 sec
13.
An ornament of mass 40.0 g is attached to a vertical ideal spring with a force constant (spring constant) of 20.0 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch?
0.00200 m
0.0196 m
0.0816 m
0.800 m
14.
A student in a band notices that a drum vibrates when another instrument emits a certain frequency note. This phenomenon illustrates
reflection
refraction
resonance
doppler effect
15.
The number of wavelengths that pass a point each per second is:
frequency
period
longitudinal
transverse wave
16.
A truck with bad shock absorbers bounces up and down after hitting a bump. The truck has a mass of 1700 kg and is supported by four springs, each having a spring constant of 6200 N/m. What is the period for each spring?
0.26 sec
1.645 sec
0.26 hz
1.645 hz
17.
An object attached to an ideal spring executes simple harmonic motion. If you want to double its total energy, you could
double the amplitude of vibration
double the force constant (spring constant) of the spring
double both the amplitude and force constant (spring constant).
double the mass
18.
The speed of a sound wave...
depends on amplitude
depends on the medium
depends on wavelength
none of the above
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