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

The string of a simple pendulum should be:

Question # 2

SHM is type of ______ motion

Question # 3

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

Question # 4

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 5

The time period of a simple pendulum is independent of its:

Question # 6

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

Question # 7

Which of the following forces is responsible for SHM

Question # 8

An oscillating body oscillates due to:

Question # 9

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The restoring force is ______ and opposite tot he applied force within ______

Question # 14

Acceleration of body executing SHM is always directed towards

Question # 15

Which of the following quantity for particle executing SHM is non-zero at mean position

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
2 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
3 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
4 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
5 If a force of 0.05 N produces an elongation of 20 mm in a 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
6 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
7 When a body is vibrating, the displacement from mean position:
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
8 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
9 A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:
A. Circular motion, circumference
B. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
10 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

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