ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Physics ECAT Pre Engineering Chapter 3 Motion and Force

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Question # 1

A non-inertial frame of reference is that frame of reference in which

Question # 2

Distance covered by a freely falling body in 2 sec will be

Question # 3

The product of force and time is called change in:

Question # 4

Ethanol (alcohol) as a type of:

Question # 5

Laws of motion are not valid in a system which is

Question # 6

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 7

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Question # 8

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

Question # 9

A body moving with uniform velocity has

Question # 10

A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:

Question # 11

Dimensions of velocity are

Question # 12

During the upward motion of the projectile, the vertical component of velocity.

Question # 13

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

Question # 14

Change in momentum is one second called.

Question # 15

The collision in which KE is conserved but momentum is not conserved is called:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 If d is the displacement of the body in time t, then its average velocity will be
A. Vav= d x t
B. Vav = t/d
C. Vav = d/t
D. Vav = d/t
2 If the velocity time graph is a straight line parallel to the time-axis, then it means:
A. The body is moving with uniform velocity
B. The body is moving with uniform acceleration
C. The body is at rest
D. None of these
3 The short distance between two points direction from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
4 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
5 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola
6 The linear momentum of the body is defined as
A. p=ma
B. p=1/2ma
C. p=mv
D. p=1/2mv
7 Unit of impulse in
A. Newton
B. Kg m
C. Kg m/s
D. Joule
8 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve
9 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
10 According to the law of conservation of linear momentum, the total linear momentum of an isolated system
A. increases
B. decreases with time
C. remains constant
D. none of them

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