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

Root out of the conventional source of energy:

Question # 2

The time rate of change of displacement is called:

Question # 3

The discuss used by athlete has a mass of 1 kg, its weight in newton is

Question # 4

The displacement coincides with the path of the motion when a body moves is a

Question # 5

When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.

Question # 6

Newton published laws of motion in his famous book "principia" in

Question # 7

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 8

When a shell explodes in mid-air, its fragments fly off in

Question # 9

During the projectile motion, the horizontal component of velocity

Question # 10

The vertical and horizontal range will be equal id angle of projection is

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

The dimension of linear inertia is:

Question # 15

The quantity F x t is called as

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 The entity which measures the quantity of motion in a body is called
A. force
B. energy
C. momentum
D. power
3 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
4 Swimming becomes possible because of______law of motion.
A. First
B. Second
C. Third
D. None of these
5 Newton's laws are adequate for speeds that are
A. low compared with the speed of light
B. equal to the speed of light
C. greater than the speed of light
D. all of them
6 A typical rocket ejects the burnt gases at speeds over
A. 400 ms-1
B. 40000m s-1
C. 40000 ms-1
D. 60000 ms-1
7 The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?
A. 400 m
B. 300 m
C. 200 m
D. 100 m
8 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
9 A body of mass 1.0 kg is falling with an acceleration of 10 m/s2. Its apparent weight will be (g=10 m/s2)
A. 1.0 kg wt
B. 2.0 kg wt
C. 0.5 kg wt
D. Zero
10 Tick the conservative force:
A. tension in a string
B. Air resistance
C. Elastic spring force
D. Frictional force

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