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

At the top of the trajectory of a projectile the acceleration is

Question # 2

Newton published laws of motion in his famous book "principia" in

Question # 3

For a fixed force, larger is the mass of a body the

Question # 4

Root out the conventional source of energy:

Question # 5

During the projectile motion, the horizontal component of velocity

Question # 6

Dimensions of velocity are

Question # 7


Swimming becomes possible because of______law of motion:

Question # 8

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

Question # 9

The vertical and horizontal range will be equal id angle of projection is

Question # 10

The path (or trajectory) described by a projectile is

Question # 11

Laws of motion are not valid in a system which is

Question # 12

Acceleration of a body at any particular instant during its motion is known as

Question # 13

The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:

Question # 14

A body of mass 5 kg is acted upon by a total change n momentum will be:

Question # 15

Maximum height of a bullet when fixed at 30 with horizontal is 11 m. Then height when it is fired at 60° is

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When a person jumps off the ground, the reaction force of the ground is
A. greater than the weight of the person
B. smaller than the weight of the person
C. equal to the weight of the person
D. zero
2 A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is
A. 6 m s-1
B. 2.45 m s-1
C. 2.25 m s-1
D. 4.45 m s-1
3 A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
4 Essential characteristic of equilibrium is
A. Momentum equal to zero
B. Acceleration equal to zero
C. Kinetic energy equal to zero
D. Velocity equal to zero
5 A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:
A. 10 m/sec2
B. 20 m/sec2
C. 30 m/sec2
D. Zero
6 A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of
A. 3 s
B. 5 s
C. 7 s
D. 9 s
7 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
8 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
9 A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after
A. 10 s
B. 20 s
C. 5 s
D. 40 s
10 The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
A. zero
B. maximum
C. minimum
D. infinity

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