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

Blomass includes:

Question # 2

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

Question # 3

A non-inertial frame of reference is that frame of reference in which

Question # 4

When a shall explodes a mid-air, the total momentum of its fragments is

Question # 5

The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:

Question # 6

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 # 7

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 8

When a person jumps off the ground, the reaction force of the ground is

Question # 9

Velocity is a

Question # 10

Earth is considered to be

Question # 11

A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:

Question # 12

Inertial frame of references are those frame of references which are moving with

Question # 13

When the surfaces are coated with a lubricant, then they

Question # 14

If the values of instantaneous and average velocities are equal, the body is said to be moving with

Question # 15

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:
A. First
B. Second
C. Third
D. None of these
2 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
3 If speed of electron is 5 x 105m/s. How long does it take one electron to transverse 1 m?
A. 1 x 106
B. 2 x 106
C. 2 x 105
D. 1 x 105
4 A body of mass 5 kg is acted upon by a total change n momentum will be:
A. 10 NS
B. 100 NS
C. 140 NS
D. 200 NS
5 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
6 Swimming is based on the principle of
A. Newton's 1st law
B. Newton's 2nd law
C. Newton's 3rd law
D. All
7 A dirty carpet is to be cleaned by heating. This is in according with______law of motion.
A. First
B. Second
C. Third
D. None of these
8 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
9 If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have
A. uniform deceleration
B. uniform negative acceleration
C. average acceleration
D. uniform positive acceleration
10 An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then
A. It still moves with the same velocity
B. It will be just floating at the same point in space
C. It will be fall down instantaneously
D. It will lose its velocity gradually

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