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 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 # 2

When brakes are applied to a fast moving car, the passengers will be thrown:

Question # 3

The quantity F x t is called as

Question # 4

Blomass includes:

Question # 5

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

Question # 6

Linear momentum is a

Question # 7

Newton's first law is also called:

Question # 8

The SI units of momentum is

Question # 9

If a ball comes back to its starting point after bouncing off the wall several times, then its

Question # 10

Change in momentum is one second called.

Question # 11

Acceleration produced in a body by a force varies

Question # 12

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 13

Velocity of a body changes if

Question # 14

A typical rocket consumes about

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
2 The vertical component of velocity of a projectile during its motion is minimum
A. at the time of projection
B. at the highest point
C. just before hitting the plane of projection
D. all of them
3 Ethanol (alcohol) is a type of:
A. Electric fuel
B. Bio fuel
C. Nuclear fuel
D. None of these
4 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
5 A 5 kg mass is falling freely, the force acting on, it will be
A. 19.6 N
B. 9.8 N
C. 5 N
D. Zero
6 A lift is moving up with acceleration equal to 1/5 of that due to gravity. The apparent weight of a 60 kg man standing in lift is
A. 60 kg wt
B. 72 kg wt
C. 48 kg wt
D. Zero
7 When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts
A. In the backward direction on the front wheel and in the forward direction on the rear wheel
B. In the forwards directions on the front wheel and in the backward direction on the rear wheel
C. In the forward direction on both the wheels
D. In the backward direction on both the wheels
8 A body moving with uniform velocity has
A. positive acceleration
B. negative acceleration
C. infinite acceleration
D. zero acceleration
9 The sum of the magnitude of two forces acting at a point is 18 and the magnitude of their resultant is 12. If the resultant is at 90° with the force of the smaller magnitude, then their magnitudes are
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
10 Work done along a closed path in a gravitational field is:
A. Maximum
B. Minimum
C. Zero
D. Unity

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