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 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 # 2

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 3

The projectile attains maximum horizontal range when it is projected at an angle of

Question # 4

One KWh is equal to:

Question # 5

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 6

The dimension of linear inertia is:

Question # 7

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 8

One KWh is equal to:

Question # 9

The path (or trajectory) described by a projectile is

Question # 10

The direction of the acceleration is the same as that of

Question # 11

The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are

Question # 12

Swimming is based on the principle of

Question # 13

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 # 14

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

Question # 15

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Graphs which are used to illustrate the variation of velocity of an object with time are called
A. distance time graphs
B. speed time graphs
C. velocity time graphs
D. acceleration time graphs
2 The shortest distance between two points directed from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
3 Velocity is a
A. scalar quantity
B. vector quantity
C. constant quantity
D. none of them
4 At the top of the trajectory of a projectile the acceleration is
A. The maximum
B. The minimum
C. Zero
D. g
5 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
6 The product of force and time is called
A. acceleration
B. linear momentum
C. angular momentum
D. impulse
7 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
8 An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called
A. a rocket
B. an aeroplane
C. a projectile
D. a ballon
9 A non-inertial frame of reference is that frame of reference in which
A. a = 0
B. a > 0 or a < 0
C. v = 0
D. none of them
10 A cold soft drink is kept on the balance. When the cap is opened, then the weight
A. Increases
B. Decreases
C. First increases, then decreases
D. Remains same

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