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

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 2

A body whose momentum is constant must have constant

Question # 3

The motion in a plane is the motion in

Question # 4

The three equation of motions are useful only for

Question # 5

The dimension of linear inertia is:

Question # 6

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Question # 7

Bodies failing freely under gravity provide good example of motion under

Question # 8

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

Question # 9

The range of projectile is 50 m whenθ is inclined with horizontal at 15°. What is the range whenθ becomes 45°?

Question # 10

Inertia mass and gravitational mass are

Question # 11

A rocket carries its own fuel in the form of

Question # 12

A lift is descending at a constant speed V. A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

Question # 13

Biomass includes:

Question # 14

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
2 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
3 The product of force and time is called
A. acceleration
B. linear momentum
C. angular momentum
D. impulse
4 The horizontal range of projectile, at a certain place, depends upon
A. the mass of the projectile
B. velocity of projection
C. angle of projection
D. angle as well as velocity of projection
5 Force is a:
A. Scalar quantity
B. Base quantity
C. Derived quantity
D. None of these
6 In the above figures, tell which set is graphs shows that a body is moving uniform velocity:
A. (i) and (ii)
B. (ii) and (iii)
C. (i) and (iii)
D. (ii) and (iv)
7 For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to
A. Four times
B. Thrice
C. Once
D. Twice
8 Acceleration of a body is negative if the velocity of the body is
A. constant
B. increasing
C. decreasing
D. none of them
9 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
10 A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:
A. 0.5 m/sec2
B. 5 m/sec2
C. 1.5 m/sec2
D. 9.8 m/sec2

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