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

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

Question # 2

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 # 3

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

Question # 4

The distance covered by a body in unit time is called.

Question # 5

Which quantity has the same dimension as that of impulse?

Question # 6

Slope of velocity-time graph represents:

Question # 7

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

Question # 8

If two bodies of equal masses moving in the same direction collide elastically, then their velocities.

Question # 9

An inertial frame of reference is that frame of reference in which

Question # 10

A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

Question # 11

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

Question # 12

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

Question # 13

The time rate of change of displacement is called:

Question # 14

The discuss used by athlete has a mass of 1 kg, its weight in newton 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 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
2 Which one of the following is dimensionless.
A. Acceleration
B. Velocity
C. Density
D. Angle
3 Acceleration produced in a body by the force varies
A. inversely as the applied force
B. directly as the applied force
C. directly as the mass of the body
D. none of them
4 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
5 The quantity F x t is called as
A. momentum
B. velocity
C. acceleration
D. impulse
6 If the objects of different masses move with the same velocity, then it is more difficult to stop the
A. lighter of the two
B. massive of the two
C. any one of them
D. both of them
7 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work
8 The time of flight of a projectile motion equal to
A. half of the time to reach maximum height
B. twice the time to reach maximum height
C. one fourth of time to reach maximum height
D. time to reach maximum height
9 The expression F x t is called impulse if the time 't' is
A. zero
B. very large
C. very small
D. infinite
10 The direction of velocity is along the direction of
A. distance
B. displacement
C. acceleration
D. all of them

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