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

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

Question # 2

Which of the following statements for an object in equilibrium is not true?

Question # 3

According to the law of conservation of linear momentum, the total linear momentum of an isolated system

Question # 4

Flight of rocket in the space is an example of

Question # 5

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

Question # 6

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Question # 7

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 8

A ball is dropped vertically down and it takes time t to reach the ground. At time t/2

Question # 9

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

Question # 10

The magnitude of the displacement is a line from initial position to final position which is

Question # 11

Dimensions of velocity are

Question # 12

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

Question # 13

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 # 14

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

Question # 15

The time of flight of a projectile motion equal to

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is
A. 45°
B. 60°
C. 50°
D. 40°
2 An airplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically above a point A on the ground, a bomb is released from it. The bomb strikes the ground, at point B. The distance AB is
A. 1200 m
B. 0.33 km
C. 3.33 km
D. 33 km
3 The direction of the linear momentum is the direction of
A. speed
B. velocity
C. weight
D. none of them
4 Acceleration of a body is positive, if the velocity of the body is
A. constant
B. increasing
C. decreasing
D. none of them
5 Acceleration in a body is always produced in the direction of :
A. Velocity
B. Weight
C. Force
D. Both B and C
6 A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is
A. 6 m s-1
B. 2.45 m s-1
C. 2.25 m s-1
D. 4.45 m s-1
7 Work done along a closed path in a gravitational force is:
A. maximum
B. Minimum
C. Zero
D. Unity
8 The projectile motion is composed of
A. horizontal motion only
B. vertical motion only
C. horizontal and vertical motion
D. none of them
9 A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
10 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work

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