ECAT Pre Computer Science Chapter 3 MCQ Test With Answer

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

Try The MCQ's Test For ECAT Physics Chapter 3 Motion and Force

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ECAT Physics Chapter 3 Motion and Force

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

Velocity of a body changes if

Question # 5

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 6

Which of the following four statements is false?

Question # 7

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

Question # 8

Rate of change of momentum is called

Question # 9

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

Question # 10

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

Question # 11

When we consider the average velocity of a body, then the body is moving in

Question # 12

The vertical component of velocity of a projectile during its motion is minimum

Question # 13

Tick the conservative force:

Question # 14

The product of force and time is called

Question # 15

The dimension of linear inertia is:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be
A. 20 ms-2
B. 10 ms-2
C. 2 ms-2
D. 1 ms-2
2 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
3 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
A. 6 s
B. 36 s
C. 38 s
D. None of these
4 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
5 Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same
A. Momentum
B. Kinetic energy
C. Velocity
D. Total energy
6 The area under line velocity-time graph is numerically equal to the
A. speed of the body
B. acceleration of the body
C. distance covered by the body
D. none of them
7 A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?
A. 4 m/s
B. 2 m/s
C. 8 m/s
D. 1 m/s
8 When two protons are brought closer potential energy of both of them:
A. Increases
B. Decreases
C. Remains same
D. None of these
9 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 Kg
B. 3 Kg
C. 4 Kg
D. 8 Kg
10 For maximum linear distance of travel, a projectile must be fired at an angle of
A. 0°
B. 45°
C. 90°
D. 60°

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