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

Page 1 of 4

Physics

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

The potential energy is maximum at the mean position

The acceleration is minimum at the mean position

The kinetic energy is maximum at the mean position

The force on the particle is maximum at the ends

2. The damping depends upon

Amplitude

None of these

Both

Sharpness

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

The length of the pendulum is increased

The mass of the pendulum is decreased

The mass of the pendulum is increased

The length of the pendulum is decreased

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

Minimum frequency

Maximum frequency

Natural frequency

None of these

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

10 cm

5 cm

7.5 cm

15 cm

6. 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

Become infinite

Remain unaffected

Increase

Decrease

7. The waves produced in microwave oven have a wavelength

11cm

10cm

11.5cm

12cm

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

The acceleration is minimum at the mean position

The kinetic energy is maximum at the mean position

The force on the particle is maximum at the ends

The potential energy is maximum at the mean position

9. In vibratory motion which parameter remains constant?

P.E. Energy

Angular Momentum

Total Energy

K.E. Energy

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

3 s

2 s

4 s

1 s

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

2λ

λ/2

3/2 λ

12. 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

3 s

4 s

1 s

2 s

13. In vibratory motion

P.E. remains constant

K.E. remain constant

Total energy remain constant

Total momentum remain constant

14. 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 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

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

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

Half the mass

Reduce the mass to one fourth

Double the mass

Quadruple the mass

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

Minimum

Zero

Maximum

None of these

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

Simple Harmonic Motion

Angular Motion

Circular Motion

Rectilinear Motion

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

Kx²

½ Kx

½ Kx²

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

Free vibrations

Powerful vibration

Forced vibration

None of these

20. Hook’s law is defined as

F and X has no relation

F and X are direct proportional

F and X are inverse proportional

None of these

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

Weak

Strong

Feeble

Extra ordinarily large

22. The waveform of simple harmonic motion will be

Sine wave

None of these

Saw tooth waveform

Square wave

23. The frequency of second pendulum is

0.5 hertz

1 hertz

2 hertz

None of these

24. The kinetic energy is maximum when mass at equilibrium

P.E.max 1.2 KX₀²

P.E.max 1.2 KX²

None of these

P.E.max 1.2 K² X

25. S.I unit of frequency is

ms¯¹

Radian

Vibration S¯²

Hertz

Page 2 of 4

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

4π second

1 second

π second

2π second

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

B and C

Force constant

Mass

Amplitude

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

Half the mass

Double the mass

Reduce the mass to one-fourth

Quadruple the mass

29. Oscillatory motion is a type of motion which is

All of these

To and fro

Periodic motions

Vibratory motion

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

Decreases

Becomes zero

Remains constant

Increases

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

Becomes one half

Remains same

Becomes Double

Become on fourth

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

Both a and b

Extreme Position

None

Mean Position

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

Kinetic energy is minimum, potential energy is maximum

Kinetic energy is maximum, potential energy is minimum

Both kinetic and potential energies are minimum

Both kinetic and potential energies are maximum

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

V = r² – x²

None of these

V = √r² – x²

V = ω√r² – x²

35. Frequency is the term used for

Time to take one Vibration

Number of vibrations per minute

Number of vibration for second

None of these

36. The energy of the oscillation comes from the

None of these

Applied force

Driving source

Starting source

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

Decreases

Increases

Becomes zero

Remains constant

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

Hand

Spring

Gravity

All of these

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

2 x amplitude

Square of amplitude

4 x amplitude

Amplitude

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

3/2 λ

2 λ

λ/2

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

Maximum in the extreme position

None of these

Constant

Zero in the mean position

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

∞ x

Independent of x

∞ x²

∞ √x

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

Crossing mean position

Half way between them

At rest

Displacement is maximum

44. 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

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

Gravity

Tension is string

None of these

Drag force of air

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

P.E. = ½ KX²

P.E. = ½ K²X²

None of these

P.E. = ½ KX₀²

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

Vp cos θ

Vp sin (90° - θ)

All of these

X₀ ω cos θ

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

Wave moving through a string fixed at both ends.

Ball bouncing between two rigid vertical walls

Particle moving in a circle with uniform speed.

Earth spinning about its own axis

49. Simple harmonic motion is mathematically represented as

A α – x

F α – x

V α – x

A α x

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

2 λ

λ/4

λ/2

Page 3 of 4

51. The vibrating bodies produce

All of these

Disturbance

Waves

Sound

52. 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

2 : 1

1 : 2

1 : 4

4 : 1

53. Identify the exact statement among the following:

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

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°.

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

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

Maximum only

Maximum as well minimum

Zero

Minimum only

55. A simple harmonic motion in which the

Acceleration produced is due to restoring force

Acceleration is directed towards the mean position

All of these

Acceleration is directly proportional to displacement

56. Phase of SHM describes

Both displacement and direction of motion

Direction of motion only

Displacement only

Neither displacement nor direction of motion

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

Resonance

Oscillation

None

Damping

58. Forced vibration are known as

Free vibration

Natural vibration

Driven harmonic vibration

Simple harmonic vibration

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

16 s

12 s

4 s

8 s

60. A simple pendulum is defined as

All of these

Light inextensible string

Small heavy mass

Friction less support

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

Extreme position

Mean position

Between mean and extreme position

None of these

62. 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

Wave motion

Periodic motion

Rectilinear motion

Rotatory motion

63. Restoring force is defined as

F = kx

F = ½ kx

F = ma

F = -kx

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

First A then B

Increases

Decreases

Remain the same

65. 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 decreased

The length of the pendulum is increased

The mass of the pendulum is increased

The length of the pendulum is decreased

66. The body oscillates due to a

None of these

Applied force

Restoring force

Frictional force

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

Total energy, amplitude, angular frequency

Acceleration, force, total energy

Angular frequency, Acceleration, force

Amplitude, angular frequency, acceleration

68. The restoring force applied on the pendulum

Mg sin θ

Mg cos θ

-mg cos θ

-mg sin θ

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

(k₁ + k₂)/2

k₁ + k₂

√k₁ k₂

k₁ k₂/( k₁ + k₂)

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

Mean position

Extreme position

Both a and b

None

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

Decreases

Becomes zero

Remains constant

Increases

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

A straight line

An ellipse

A circle

A hyperbola

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

Water molecules

Both

All of these

Fat molecules

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

Twice

Nine times

Four times

Three times

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

1/8

Page 4 of 4

76. 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

77. Natural frequency of simple pendulum depends upon

Square of its length

Square root of its length

Its mass

Its length

78. The damped oscillations are produced due to

All of these

Air resistance

Frictional support of the system

System friction

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

From means position to back to its means position

All of these

From extreme position

Means position to upper extreme position

80. 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

Velocity

Difference between kinetic energy and potential energy

Potential energy

Phase difference between acceleration and displacement

81. In simple harmonic motion

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

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 acceleration of the vibrating particle are in the same phase.

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

83. Turning of a radio set is an example of

Musical resonance

Free vibration

Electrical resonance

Mechanical resonance

84. 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

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

Applied periodic force is small

Quality factor is small

Restoring force is small

Damping force is small

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

Wavelength of the various bodies

Amplitudes of the various bodies

Wavelength of the various bodies

None of these

87. The relation for the displacement in SHM is

X = X₀ sin ωt

X = X₀ cos ωt

X = X₀ cos (ωt + φ)

None of these

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

ECAT Chemistry Environmental Chemistry Test Online
ECAT Chemistry Common Chemical Industries in Pakistan Test O...
ECAT Chemistry Macro-Molecules Test Online
ECAT Chemistry Carboxylic Acid Test Online
ECAT Chemistry Aldehydes and Ketones Test Online
ECAT Chemistry Alcohols Phenols And Ethers Test Online
ECAT Chemistry Alkyl Halides Test Online
ECAT Chemistry Aromatic Hydrocarbons Test Online
ECAT Chemistry Aliphatic Hydrocarbons Test Online
ECAT Chemistry Fundamental Principles of Organic Chemistry T...

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 Mathematics Trigonometric Identities Online Test

UET Peshawar ECAT Computer Science Entry Test Online Preparation

ECAT Chemistry Transition Elements Test Online

ECAT Chemistry Chemical Equilibrium Test Online

ECAT Chemistry Reaction Kinetics Test Online

ECAT Physics Fluid Dynamics Online Test

3 Comments

Leave a Reply Cancel reply