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 velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 2

If the velocity time graph is a straight line parallel to the time-axis, then it means:

Question # 3

If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be

Question # 4

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

Question # 5

For maximum linear distance of travel, a projectile must be fired at an angle of

Question # 6

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 7

An inertial frame of reference is that frame of reference in which

Question # 8

When the surfaces are coated with a lubricant, then they

Question # 9

Newton's first law is also called:

Question # 10

A body is thrown from a height h with speed u, it hits the ground with speed V

Question # 11

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

Question # 12

Newton's laws are adequate for speeds that are

Question # 13

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

Question # 14

Force is a:

Question # 15

If m means mass of gases objected per second from a rocket and v shows the change in velocity, than mv is named as:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A 5 kg mass is falling freely, the force acting on, it will be
A. 19.6 N
B. 9.8 N
C. 5 N
D. Zero
2 The artillery shells travel along parabolic paths under the influence of
A. magnetic field
B. electric field
C. electromagnetic field
D. gravitational field
3 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
4 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
5 The horizontal range of projectile, at a certain place, depends upon
A. the mass of the projectile
B. velocity of projection
C. angle of projection
D. angle as well as velocity of projection
6 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
7 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
8 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
A. To fall vertically down
B. To fall at an angle going from west to east
C. To fall at an angle going from east to west
D. The information given is insufficient to decide the direction of rain
9 By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)
A. 58.8 m/s
B. 49 m/s
C. 65 m/s
D. 19.6 m/s
10 The distance covered by a body in unit time is called.
A. Displacement
B. speed
C. Velocity
D. Both B and C

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