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

Change in momentum is one second called.

Question # 2

Tick the conservation force:

Question # 3

When body moves with increasing acceleration, its velocity time graph is a

Question # 4

A body is moving with constant velocity of 10 m/sec in the north-east direction. Then its acceleration will be:

Question # 5

The dimension of linear inertia is:

Question # 6

One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:

Question # 7

The motion of a projectile is

Question # 8

A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds

Question # 9

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 # 10


Swimming becomes possible because of______law of motion:

Question # 11

Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?

Question # 12

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

Question # 13

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 14

For a moving body, at any instant of time

Question # 15

A man sitting in a bus travelling in a direction from west to east with a speed of 40 km/h observes that the rain drops are falling vertically down. To the another man standing on ground the rain will appear

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Body which falls freely under gravity provides good example of motion under:
A. Uniform acceleration
B. Non-uniform acceleration
C. Uniform velocity
D. None of these
2 The time rate of change of displacement is called:
A. Time
B. Acceleration
C. Speed
D. Velocity
3 When a force is applied on a body, several effects are possible Which of the following effect could not occur?
A. the body rotates
B. the body speeds up
C. the mass of the body decreases
D. the body changes its direction
4 The mass of a body measured by a physical balance in a lift at rest is found to be m, if the lift is going up with an acceleration a, its mass will be measured as
A. m (1 - a/g)
B. m (1 + a/g)
C. m
D. Zero
5 A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is
A. 120 x 10.8 N
B. 180 N
C. 720 N
D. 360 N
6 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
7 A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is
A. m
B. 2 m
C. 4 m
D. Infinity
8 A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?
A. 60 km/hr
B. 80 km/hr
C. 120 km/hr
D. 180 km/hr
9 A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
10 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension

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