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

Flight of rocket in the space is an example of

Question # 2

When a force is applied on a body, several effects are possible Which of the following effect could not occur?

Question # 3

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

Question # 4

Inertia mass and gravitational mass are

Question # 5

Change in momentum is one second called.

Question # 6

One KWh is equal to:

Question # 7

The projectile motion is composed of

Question # 8

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

Question # 9

The consumption of energy by a 1000 watt heter in half an hour is:

Question # 10

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

Question # 11

Angular momentum

Question # 12

A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is

Question # 13

A projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 14

Work done along a closed path in a gravitational force is:

Question # 15

The decrease in velocity per unit time is called:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Newton's first law is also called:
A. Law of torque
B. Law of force
C. Law of inertia
D. None of these
2 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
3 When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is
A. zero
B. negative
C. positive
D. non-existing
4 The magnitude of the force producing an acceleration of 10 m/sec2in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
5 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
6 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
7 If the acceleration of a body is negative, then slope of the velocity-time graph will be:
A. Zero
B. Positive
C. Negative
D. Infinity
8 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
9 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
10 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle

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