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

A body moving with uniform velocity has

Question # 2

When the total displacement is divided by total time taken, we get:

Question # 3

The direction of velocity is along the direction of

Question # 4

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 5

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

Question # 6

In above figures, tell which set of graphs shows that a body is moving with uniform velocity:

Question # 7

Rate of change of momentum is called

Question # 8

A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is

Question # 9

The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to

Question # 10

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

Question # 11

Change in momentum is one second called.

Question # 12

The decrease in velocity per unit time is called:

Question # 13

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 # 14

The time of flight of a projectile motion equal to

Question # 15

If the objects of different masses move with the same velocity, then it is more difficult to stop the

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Two bodies of masses 1 kg and 5 kg are dropped gently form the top of a tower. A a point 20 cm from the ground both the bodies will have the same
A. Momentum
B. Kinetic energy
C. Velocity
D. Total energy
2 The motion in a plane is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
3 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
4 Essential characteristic of equilibrium is
A. Momentum equal to zero
B. Acceleration equal to zero
C. Kinetic energy equal to zero
D. Velocity equal to zero
5 The decrease in velocity per unit time is called:
A. Variable Acceleration
B. Average Acceleration
C. Retardation
D. None of these
6 When the surfaces are coated with a lubricant, then they
A. Stick to each other
B. Slide upon each other
C. Roll upon each other
D. None of these
7 If m is the mass of the gases ejected per second with velocity v relative to the rocket of mass M, then the acceleration of rocket is
A. a = M/mv
B. a = mM/v
C. a = mv/M
D. a = v/mm
8 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 kg
B. 3 kg
C. 4 kg
D. 8 kg
9 A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?
A. Both hit the ground at the same veloctiy
B. Both hit the ground at the same speed
C. The change of velocity during the path for both balls is the same
D. The change of speed during the path for both balls is the same
10 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

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