ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

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Physics ECAT Pre Engineering Chapter 7 Oscillations

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Question # 1

When a body is vibrating, the displacement from mean position:

Question # 2

The unit of spring constant is:

Question # 3

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

Question # 4

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:

Question # 5

A body with frequency of would complete one vibration in:

Question # 6

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

Question # 7

Second's pendulum is the pendulum whose time period is:

Question # 8

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

Question # 9

The SI unit of spring constant is identical with that of

Question # 10

SHM is type of ______ motion

Question # 11

Amplitude is the displacement of the vibrating body from:

Question # 12

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

Question # 13

The string of a simple pendulum should be:

Question # 14

The acceleration of body executing SHM is directly proportional to

Question # 15

When a body is vibrating, the displacement from mean position

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
2 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
3 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
4 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
5 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None
6 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
7 The restoring force is _____ and opposite to the applied force within ______,:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these
8 In vibrational motion(SHM)
A. P.E remains conserved
B. Average K.E remain constant
C. Neither P.E nor K.E remains constant
D. Total energy remains constant
9 If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:
A. 250 N m-1
B. 25 N m-1
C. 2.5 N m-1
D. None of these
10 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

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