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 direction of the linear momentum is the direction of

Question # 2

The direction of the acceleration is the same as that of

Question # 3

The motion in a plane is the motion in

Question # 4

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

Question # 5

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 6

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

Question # 7

Which one of the following is dimensionless.

Question # 8

A typical rocket consists of fuel

Question # 9

The three equation of motions are useful only for

Question # 10

When two protons are brought closer potential energy of both of them:

Question # 11

The effect of applying a force on a moving body is to change

Question # 12

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

Question # 13

Acceleration in a body is always produced in the directin of:

Question # 14

A cold soft drink is kept on the balance. When the cap is opened, then the weight

Question # 15

When a bicycle is in motion, the frictional forces exerted by the ground are

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
A. Unequal
B. Exactly equal
C. Roughly equal
D. Zero
2 A body of weight 1 N has a kinetic energy of 1 joule when its speed is:
A. 1.46 m sec-1
B. 2.44 m sec-1
C. 3.42 m sec-1
D. 4.43 m sec-1
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 path (or trajectory) described by a projectile is
A. a parabola
B. a hyperbola
C. a circle
D. a straight line
5 A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
A. 12 s
B. 8 s
C. 15 s
D. 10 s
6 Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2
A. 0.064 m
B. 640 cm
C. 64 cm
D. 64 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 Acceleration produced in a body by the force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
9 If the values of instantaneous and average velocities are equal, the body is said to be moving with
A. uniform acceleration
B. uniform speed
C. variable velocity
D. uniform velocity
10 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C

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