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

The motion of a body in a straight line is the motion in

Question # 2

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

Question # 3

Newton's laws are adequate for speeds that are

Question # 4

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

Question # 5

Which quantity has the same dimension as that of impulse?

Question # 6

A change in position of a body from its initial position to its final position is known as

Question # 7

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

Question # 8

A the top of the trajectory of a projectile, the directions of its velocity and acceleration are

Question # 9

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

Question # 10

The SI units of momentum is

Question # 11

The direction of velocity is along the direction of

Question # 12

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 13

A body walks to his school at a distance of 6 km with a speed of 2.5 km/h and walks back with a constant speed of 5 km/h. His average speed for round trip expressed in km/h is

Question # 14

Which of the following is not a projectile

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them
2 Change in momentum is one second called.
A. Impulse
B. Force
C. Energy
D. Work
3 Which of the following four statements is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
4 What must be changing when a body is accelerating uniformly?
A. the force acting on a body
B. the velocity of the body
C. the mass of the body
D. the speed of the body
5 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
6 For a moving body, at any instant of time
A. If the body is not moving the acceleration is necessarily zero
B. If the body is slowing, the retardation is negative
C. If the body is slowing, the distance is negative
D. If displacement, velocity and acceleration at that instant are known, we can find the displacement at any given time in future
7 The effect of applying a force on a moving body is to change
A. its direction of motion only
B. its speed of motion only
C. both the direction and speed of motion
D. its inertia only
8 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
9 If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:
A. Force
B. Energy
C. work
D. impulse
10 A lift is moving up with acceleration equal to 1/5 of that due to gravity. The apparent weight of a 60 kg man standing in lift is
A. 60 kg wt
B. 72 kg wt
C. 48 kg wt
D. Zero

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