ECAT Pre General Science Chapter 7 online mcq test with answers for Physics chapter 7 (Oscillation)

Question # 1

If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:

250 N m^-1 A
25 N m^-1 B
2.5 N m^-1 C
None of these D

Question # 2

Amplitude in SHM is equivalent to ______ in circular motion

Diameter A
Radius B
Circumference C
None of these D

Question # 3

If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:

K/2 A
2 K B
4 K C
None of these D

Question # 4

If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:

k/2 A
2 k B
4 k C
None of these D

Question # 5

Which one of the following is an example of SHM

Motion in a plane A
Motion in a swing B
Motion in a car C
None of these D

Question # 6

A body with frequency would complete one vibration in:

f seconds A
1/f seconds B
1 second C
f²second D

Question # 7

A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:

1.5 sec A
2.0 sec B
2.3 sec C
2.5 sec D

Question # 8

Acceleration of body executing SHM is always directed towards

Extreme position A
Mean position B
Along the direction of motion C
None D

Question # 9

The unit of spring constant is:

J-sec A
Metre B
Nm^-1 C
None of these D

Question # 10

The body oscillates due to __ accelerates and overshoots the rest position due to _:

Applied force , inertia A
Restoring force, friction B
Frictional force, inertia C
Restoring force, inertia D

Question # 11

Which of the following is an example of SHM(in ideal situations)

Motion of simple pendulum A
Motion of horizontal spring man system B
Motion of violin string C
All of these D

Question # 12

The acceleration of body executing SHM is directly proportional to

Applied force A
Amplitude B
Displacement C
Frictional force D

Question # 13

The restoring force is __ amd opposite to the applied force within _:

Equal, elastic limit A
Different, the walls of the laboratory B
Different, elastic limit C
None of these D

Question # 14

If mass of 10 gm is suspended from a spring of K=0.8 Nm^-1then the extension will be:

10 cm A
1 m B
10 mn C
None of these D

Question # 15

Vibratory motion is always under

Applied force A
Restoring force B
Periodic force C
Gravitational force D

Question # 16

When a body is vibrating, the displacement from mean position

Increases with time A
Decreases with time B
Changes with time C
None of these D

Question # 17

When quarter of a circle is completed, the phase of vibration is:

90° A
180° B
45° C
360° D

Question # 18

The string of a simple pendulum should be:

Heavy A
Extensible B
In-extensible C
None of these D

Question # 19

Velocity of particle executing SHM will be maximum at

Extreme position A
Mean position B
b/w mean and extreme C
None D

Question # 20

A spring of constant k = 0.4 N m^-1is to be extended through 10 cm at a place where g = 10 m sec^-2. The mass to be suspended should be:

4 gms A
0.4 gm B
40 gms C
None of these D

Question # 21

A particle is moving along a circular path with uniform speed. Its projection will executealong theof the circle:

Circular motion, circumference A
Vibrator, chord B
SHM, diameter C
SHM, circumference D

Question # 22

In SHM, the acceleration is __ when velocity is _:

Zero, smallest A
Smallest, zero B
Zero, zero C
Zero, greatest D

Question # 23

The displacement of body executing SHM is

x_ocoswt A
x_osinwt B
x_osin²wt C
Both A, B D

Question # 24

In vibrational motion(SHM)

P.E remains conserved A
Average K.E remain constant B
Neither P.E nor K.E remains constant C
Total energy remains constant D

Question # 25

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

3 K A
2 K B
K/4 C
K/3 D

Question # 26

The SI unit of spring constant is identical with that of

Force A
Surface tension B
Pressure C
Loudness D

Question # 27

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

f A
2 f B
3 f C
1/2 f D

Question # 28

An angle of 180° in circular motion is equivalent to ______ in SHM.

Half the vibration A
One vibration B
3/4th of a vibration C
None of these D

Question # 29

An object undergoes SHM. Its maximum equilibrium positions:

Maximum A
Half of its maximum value B
Zero C
None D

Question # 30

The SI unit of spring constant is identical with that of:

Force A
Surface tension B
Pressure C
Loudness D

Sr.#	Question	Answer
1	The unit of spring constant is	A. J-sec B. Metre C. Nm^-1 D. None of these
2	The body oscillates due to ______ accelerates and overshoots the rest position due to _____:	A. Applied force , inertia B. Restoring force, friction C. Frictional force, inertia D. Restoring force, inertia
3	An object undergoes SHM. Its maximum equilibrium positions:	A. Maximum B. Half of its maximum value C. Zero D. None
4	The restoring force is ______ and opposite tot he applied force within ______	A. Equal, Elastic limit B. Different, The walls of the laboratory C. Different, Elastic limit D. None of these
5	Which one of the following is an example of SHM	A. Motion in a plane B. Motion in a swing C. Motion in a car D. None of these
6	A spring of constant k = 0.4 N m^-1is to be extended through 10 cm at a place where g = 10 m sec^-2. The mass to be suspended should be:	A. 4 gms B. 0.4 gm C. 40 gms D. None of these
7	Velocity of particle executing SHM will be maximum at	A. Extreme position B. Mean position C. b/w mean and extreme D. None
8	If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:	A. 3 K B. 2 K C. K/4 D. K/3
9	If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:	A. 2500 MHz B. 0.25 MHz C. 2500 KHz D. None of these
10	When quarter of a cycle is completed, the phase of vibration is:	A. 90° B. 180° C. 45° D. 360°

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ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

ECAT Pre General Science Physics Chapter 7 Oscillations

If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:

Amplitude in SHM is equivalent to ______ in circular motion

If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:

If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:

Which one of the following is an example of SHM

A body with frequency would complete one vibration in:

A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:

Acceleration of body executing SHM is always directed towards

The unit of spring constant is:

The body oscillates due to ______ accelerates and overshoots the rest position due to _____:

Which of the following is an example of SHM(in ideal situations)

The acceleration of body executing SHM is directly proportional to

The restoring force is ______ amd opposite to the applied force within _____:

If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:

Vibratory motion is always under

When a body is vibrating, the displacement from mean position

When quarter of a circle is completed, the phase of vibration is:

The string of a simple pendulum should be:

Velocity of particle executing SHM will be maximum at

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

In SHM, the acceleration is ______ when velocity is _____:

The displacement of body executing SHM is

In vibrational motion(SHM)

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

The SI unit of spring constant is identical with that of

The number of vibration in two seconds can be expressed as______ of frequency of vibration is f:

An angle of 180° in circular motion is equivalent to ______ in SHM.

An object undergoes SHM. Its maximum equilibrium positions:

The SI unit of spring constant is identical with that of:

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