ECAT Pre Engineering Physics Chapter 3 MCQ Test With Answer

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

Try The 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

Velocity is a

Question # 2

A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is

Question # 3

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

Question # 4

If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be

Question # 5

A typical rocket consumes about

Question # 6

Which of the following is not a projectile

Question # 7

Body which falls freely under gravity provides good example of motion under:

Question # 8

The direction of the linear momentum is the direction of

Question # 9

Root out the conventional source of energy:

Question # 10

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

Question # 11

A lift is descending at a constant speed V. A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

Question # 12

If the objects of different masses move with the same velocity, then it is more difficult to stop the

Question # 13

Tick the conservative force:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The dimension of linear inertia is:
A. MLT2
B. ML0T-2
C. ML0T0
D. MLT-1
2 The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is
A. 500 ms-1
B. 1000 ms-1
C. 250 ms-1
D. Zero
3 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
4 If the acceleration of a body is not uniform, then velocity-time graph will be:
A. Curve
B. Straight line
C. Sphere
D. All of these
5 A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be
A. 7.71 m s-2
B. 0.5m s-2
C. 0.15m s-2
D. 0.092m s-2
6 A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:
A. 20 minutes
B. 48 minutes
C. 10 minutes
D. 5 minutes
7 The time of flight of a projectile motion equal to
A. half of the time to reach maximum height
B. twice the time to reach maximum height
C. one fourth of time to reach maximum height
D. time to reach maximum height
8 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
9 When a shell explodes in mid-air, its fragments fly off in
A. only one direction
B. in two direction
C. different directions
D. a particular direction
10 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity

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