Home/ECAT/ECAT Physics Oscillations Test Online

ECAT Physics Oscillations Test Online

Maan AliLast Updated: April 18, 2025

Physics Oscillations MCQS Online Test

ECAT Physics Oscillations Chapter Online Test

Total Questions:	87
Time Allowed:	40 Minutes
Total Marks:	87
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	ECAT Entry Test Physics Online Test Interview Questions about Physics All Universities Entrance Test Recruitments Tests

Physics Oscillations Chapter Online Test

Please wait...

Page 1 of 4

Physics

1. In a simple harmonic motion (SHM), which of the following does not hold?

The acceleration is minimum at the mean position

The potential energy is maximum at the mean position

The kinetic energy is maximum at the mean position

The force on the particle is maximum at the ends

2. If the length of the pendulum becomes four times, its time period will become

Three times

Twice

Nine times

Four times

3. In a simple harmonic motion (SHM), which of the following does not hold?

The acceleration is minimum at the mean position

The force on the particle is maximum at the ends

The potential energy is maximum at the mean position

The kinetic energy is maximum at the mean position

4. The velocity of the mass attached to a spring is maximum at

None

Both a and b

Mean position

Extreme position

5. A vertical mass-spring system executes simple harmonic oscillations with a period of 2s A quantity of this system which exhibits simple harmonic variation with a period of 1s is

Difference between kinetic energy and potential energy

Phase difference between acceleration and displacement

Velocity

Potential energy

6. The process whereby energy is dissipated from the oscillating system in called

Resonance

None

Damping

Oscillation

7. The time period so a system executing simple harmonic motion depends upon

Amplitude

Force constant

B and C

Mass

8. The velocity of the body changes at different points, it is maximum at

Extreme position

None of these

Between mean and extreme position

Mean position

9. The time period of a simple pendulum is 2 seconds. If its length is increased by 4 times, then its period becomes

12 s

8 s

4 s

16 s

10. In which of the following lists are all three quantities constant when a particle moves in undamped simple harmonic motion?

Acceleration, force, total energy

Amplitude, angular frequency, acceleration

Angular frequency, Acceleration, force

Total energy, amplitude, angular frequency

11. If the metal bob in a simple pendulum is replaced by a wooden bob, then its time period will

Increases

Remain the same

Decreases

First A then B

12. The frequency of second pendulum is

None of these

1 hertz

0.5 hertz

2 hertz

13. In case of a simple pendulum the cause of damping is

Tension is string

Gravity

None of these

Drag force of air

14. The work done is stretching spring appears as elastic potential energy of the spring is

None of these

P.E. = ½ KX₀²

P.E. = ½ KX²

P.E. = ½ K²X²

15. The waveform of simple harmonic motion will be

Sine wave

None of these

Square wave

Saw tooth waveform

16. The damped oscillations are produced due to

Air resistance

All of these

System friction

Frictional support of the system

17. S.I unit of frequency is

Vibration S¯²

Radian

ms¯¹

Hertz

18. A particle executes SHM. The graph of its velocity as a function of displacement is

A circle

A hyperbola

An ellipse

A straight line

19. Total distance traveled by bob of simple pendulum in one vibration is equal to

4 x amplitude

Square of amplitude

Amplitude

2 x amplitude

20. If mass attached to a spring increases, then its time period

Becomes zero

Increases

Decreases

Remains constant

21. In a simple harmonic oscillator, at the mean position

Both kinetic and potential energies are maximum

Both kinetic and potential energies are minimum

Kinetic energy is minimum, potential energy is maximum

Kinetic energy is maximum, potential energy is minimum

22. When a body movies in a circle, its projection performs what type of motion?

Rectilinear Motion

Simple Harmonic Motion

Circular Motion

Angular Motion

23. The restoring force of S.H.M. is maximum when particle:

Displacement is maximum

At rest

Crossing mean position

Half way between them

24. A driven harmonic oscillator is the device in which, a physical system undergoes

None of these

Free vibrations

Powerful vibration

Forced vibration

25. In case of a vibrating Pendulum, the potential energy is maximum at

None

Mean Position

Both a and b

Extreme Position

Page 2 of 4

26. The vibrating bodies produce

Waves

Sound

All of these

Disturbance

27. Simple harmonic motion is mathematically represented as

V α – x

F α – x

A α x

A α – x

28. Simple harmonic motion is defined as the motion of a particle such that

Its displacement x is always given by the expression x = x₀ sin ωt.

Its acceleration is always ω²x₀ and its directed at right angles to its motion

Its displacement x is related to its velocity b by the expression v = ωt.

Its acceleration is proportional to, and in the opposite direction to, the displacement

29. Two springs of spring constants 1500 N/m and 3000 N/m respectively are stretched with the same force. They will have potential energy in the ratio

1 : 2

4 : 1

1 : 4

2 : 1

30. In case of a vibrating Pendulum, if the mass of the pendulum is doubled then its time period

Remains same

Becomes one half

Become on fourth

Becomes Double

31. Specific response of a system which is able to oscillate with a certain period, to an external force acting with the same period is called

Doppler’s effect

Resonance

Wavelength

Time period

32. Phenomenon of resonance is very often employed to determine the

None of these

Wavelength of the various bodies

Amplitudes of the various bodies

Wavelength of the various bodies

33. A pendulum suspended from the ceiling of a train has a period T when the train is at rest. When the train is accelerating with a uniform acceleration, the period of oscillation will

Remain unaffected

Become infinite

Decrease

Increase

34. If mass attached to a spring increases, then its time period

Remains constant

Increases

Decreases

Becomes zero

35. The potential energy of a spring executing SHM is given by the

½ Kx

Kx²

½ Kx²

36. The damping depends upon

Sharpness

Amplitude

None of these

Both

37. In simple harmonic motion

The acceleration of the vibrating particle is ahead of displacement by a phase of π.

The velocity of the vibrating particle is ahead in phase of the displacement by and angle π.

The velocity and displacement if the vibrating particle are in the same phase

The velocity and acceleration of the vibrating particle are in the same phase.

38. Which one of the following is a simple harmonic motion?

Wave moving through a string fixed at both ends.

Particle moving in a circle with uniform speed.

Ball bouncing between two rigid vertical walls

Earth spinning about its own axis

39. A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if

The mass of the pendulum is increased

The length of the pendulum is decreased

The length of the pendulum is increased

The mass of the pendulum is decreased

40. In case of a forced vibration, the resonance becomes very sharp when the

Restoring force is small

Applied periodic force is small

Damping force is small

Quality factor is small

41. One vibration means, the motion of mass from its

From extreme position

All of these

Means position to upper extreme position

From means position to back to its means position

42. At the frequency of 2450 MHz, the waves are absorbed due to resonance by

All of these

Water molecules

Both

Fat molecules

43. In a progressive wave, the distance between two consecutive crests is

3/2 λ

λ/2

2λ

44. A simple pendulum is defined as

Friction less support

Small heavy mass

All of these

Light inextensible string

45. To make the frequency double of a spring oscillator, we have to:

Quadruple the mass

Half the mass

Reduce the mass to one fourth

Double the mass

46. A pendulum clock set to give correct time in Karachi is taken to Quetta. It would give correct time if

The mass of the pendulum is increased

The mass of the pendulum is decreased

The length of the pendulum is increased

The length of the pendulum is decreased

47. In energy conservation, when spring is stretched slowly so that acceleration is

None of these

Maximum

Minimum

Zero

48. A sine wave is represented by Q. The distance between the two particles having same maximum displacement is

λ/2

λ/4

2 λ

49. The distance covered by a body in one complete vibration is 20cm. What is the amplitude of body?

7.5 cm

5 cm

10 cm

15 cm

50. Phase of SHM describes

Both displacement and direction of motion

Displacement only

Neither displacement nor direction of motion

Direction of motion only

Page 3 of 4

51. In vibratory motion which parameter remains constant?

K.E. Energy

P.E. Energy

Angular Momentum

Total Energy

52. The tension in the string of a simple pendulum is

Zero in the mean position

Constant

Maximum in the extreme position

None of these

53. A simple harmonic motion in which the

Acceleration is directed towards the mean position

Acceleration is directly proportional to displacement

All of these

Acceleration produced is due to restoring force

54. Hook’s law is defined as

None of these

F and X are inverse proportional

F and X has no relation

F and X are direct proportional

55. The effective component of Vp or the velocity of the particle is given by

Vp sin (90° - θ)

X₀ ω cos θ

Vp cos θ

All of these

56. The kinetic energy is maximum when mass at equilibrium

P.E.max 1.2 KX²

P.E.max 1.2 K² X

None of these

P.E.max 1.2 KX₀²

57. In vibratory motion

P.E. remains constant

Total momentum remain constant

K.E. remain constant

Total energy remain constant

58. The total energy of a particle, executing simple harmonic moron is

∞ x²

∞ √x

Independent of x

∞ x

59. Forced vibration are known as

Simple harmonic vibration

Free vibration

Natural vibration

Driven harmonic vibration

60. Restoring force is defined as

F = -kx

F = ½ kx

F = kx

F = ma

61. The speed of a particle executing SHM along a circular path is given by the relation

V = ω√r² – x²

V = r² – x²

None of these

V = √r² – x²

62. Two springs of spring constants k₁ and k₂ are joined in series. The effective spring constant of the combination is given by

k₁ + k₂

k₁ k₂/( k₁ + k₂)

(k₁ + k₂)/2

√k₁ k₂

63. The type of motion in which an oscillating disturbance is transmitted from one position to the next without the actual rectilinear translation of the particles of the medium is called

Rectilinear motion

Periodic motion

Wave motion

Rotatory motion

64. Identify the exact statement among the following:

As the length of a simple pendulum is increased, the maximum velocity of its bob during its oscillation will also increase

A simple pendulum with a bob of mass M swings with an angular amplitude of 40°. When its angular amplitude is 20°, the tension in the string is less than Mg cos 20°.

The fractional change in the time period of a pendulum on changing the temperature is independent of the length of the pendulum.

The greater the mass of pendulum bob, the shorter is its frequency of oscillation

65. The waves produced in microwave oven have a wavelength

10cm

12cm

11cm

11.5cm

66. Frequency is the term used for

Number of vibrations per minute

None of these

Time to take one Vibration

Number of vibration for second

67. If the magnitude of displacement is numerically equal to that of acceleration, then the time period is

π second

2π second

1 second

4π second

68. In a seconds pendulum, mass of the bob is 30 gm. If it is replaced by 90 gm mass. Then its time period will be

4 s

1 s

3 s

2 s

69. In a garden, a boy is swinging in the standing position. How will the time period of the swing be affected if the boy sits down on the swing?

Time period will not change

Time period will decrease

Time period will depend on the weight of the boy.

Time period will increase

70. The relation for the displacement in SHM is

None of these

X = X₀ cos (ωt + φ)

X = X₀ cos ωt

X = X₀ sin ωt

71. Natural frequency of simple pendulum depends upon

Square of its length

Its length

Its mass

Square root of its length

72. The frequency of these free oscillations is known as it s

Maximum frequency

Natural frequency

None of these

Minimum frequency

73. The energy of the oscillation comes from the

Driving source

None of these

Starting source

Applied force

74. When the displacement is half of the amplitude, the ratio of potential energy to the total energy is

1/8

75. The product of frequency and time period is equal to

Page 4 of 4

76. Turning of a radio set is an example of

Musical resonance

Free vibration

Mechanical resonance

Electrical resonance

77. If a simple pendulum is shifted from Multan to Mount Everest, then its time period

Becomes zero

Decreases

Remains constant

Increases

78. For a simple pendulum the restoring force is caused by

All of these

Spring

Gravity

Hand

79. Oscillatory motion is a type of motion which is

All of these

Vibratory motion

To and fro

Periodic motions

80. In a resonance striation, the driving force may be

Weak

Feeble

Extra ordinarily large

Strong

81. If the period of oscillation of mass (M) suspended from a spring is 2s, then the period of mass 4M will be

2 s

4 s

3 s

1 s

82. In which case does the potential energy decreases?

On moving a body against gravitational force

On stretching s spring

On compressing a spring

One the rising of an air bubble in water

83. The body oscillates due to a

None of these

Frictional force

Restoring force

Applied force

84. To make the frequency double of an oscillator, we have to

Double the mass

Half the mass

Quadruple the mass

Reduce the mass to one-fourth

85. The energy absorbed by a body is _________ at resonance.

Zero

Maximum as well minimum

Minimum only

Maximum only

86. In a progressive wave, the distance between two consecutive crests is

2 λ

3/2 λ

λ/2

87. The restoring force applied on the pendulum

Mg cos θ

-mg cos θ

Mg sin θ

-mg sin θ

You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.

UET Peshawar Entry Test 2025 Registration Online ETEA Test D...
ECAT Statistics Test Set 17
ECAT Statistics Test Set 16
ECAT Statistics Test Set 15
ECAT Statistics Test Set 14
ECAT Statistics Test Set 13
ECAT Statistics Test Set 12
ECAT Statistics Test Set 11
ECAT Statistics Test Set 10
ECAT Statistics Test Set 9

Maan AliLast Updated: April 18, 2025

Facebook Twitter Reddit WhatsApp Share via Email Print

3 Comments

Khudabux mari padidan station says:

May 31, 2022 at 12:39 pm

90

MUHAMMAD AMAD ALI says:

July 15, 2017 at 1:35 pm

YOUR WEBSITE IS TOO GOOD IT GIVE ALOT OF HELP YO GET SUCCESS IN OUR LIFE SO MUCH THANKS TO ALL YOUR TEAM A GRAT GREAT THANKU WITH MY REGARDS I ALSO WANT TO TELL YOU THAT KINDLY UODATE THE SITE MANY ANSWERS WERE OLD REPLACE THEM WITH NEW ONE THANKU

jahanzaib shahid says:

November 8, 2016 at 12:26 am

BAJI

ECAT Physics Oscillations Test Online

Physics Oscillations MCQS Online Test

ECAT Physics Oscillations Chapter Online Test

Physics Oscillations Chapter Online Test

Physics

You Might Also Like

Maan Ali

3 Comments

Leave a Reply Cancel reply

Physics Oscillations MCQS Online Test

ECAT Physics Oscillations Chapter Online Test

Physics Oscillations Chapter Online Test

Physics

You Might Also Like

Maan Ali

Your Related

ECAT English Prepositions 3 Online Test

ECAT Chemistry Chemical Bonding Online Test

ECAT Chemistry Solutions Online Test

ECAT Physics Modern Physics Test Online

ECAT English Vocabulary 3 Test Online

ECAT Mathematics Solution of Trigonometric Functions Online Test

3 Comments

Leave a Reply Cancel reply