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

The motion of a projectile is

Question # 2

If the acceleration of a body is negative, then slope of the velocity-time graph will be:

Question # 3

Acceleration of a body is positive, if the velocity of the body is

Question # 4

Ethanol (alcohol) is a type of:

Question # 5

The expression F x t is called impulse if the time 't' is

Question # 6

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 7

The time rate of change of displacement is called:

Question # 8

When the total displacement is divided by total time taken, we get:

Question # 9

If the velocity time graph is a straight line parallel to the time-axis, then it means:

Question # 10

The SI units of momentum is

Question # 11

A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is

Question # 12

The shortest distance between two points directed from its initial point to final point is called:

Question # 13

If the velocity time graph is a straight line parallel to time-axis, then it means that:

Question # 14

At the top of the trajectory of a projectile the acceleration is

Question # 15

Which one of the following is dimensionless:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Change in momentum is one second called.
A. Impulse
B. Force
C. Energy
D. Work
2 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
3 The direction of velocity is along the direction of
A. distance
B. displacement
C. acceleration
D. all of them
4 A projectile on its path gets divided into two pieces at its highest point. Which is true?
A. Momentum increases
B. Momentum decreases
C. Kinetic energy increases
D. Kinetic energy decreases
5 A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is
A. 3,600 N
B. 7,200 N
C. 10,000 N
D. 100,000 N
6 The displacement coincides with the path of the motion when a body moves is a
A. curved line
B. straight line
C. may be curved or straight
D. none of them
7 Rate of change of momentum is called
A. Impulse
B. Force
C. Torque
D. Momentum
8 A ball falls on the surface from 10 m height and rebounds to 2.5 m. if the duration of contact with the floor is 0.01 seconds then the average acceleration during contact is
A. 2100 m/s2
B. 1400 m/s2
C. 700 m/s2
D. 400 m/s2
9 Acceleration of a body is positive, if the velocity of the body is
A. constant
B. increasing
C. decreasing
D. none of them
10 A mass of 5kg moves with an acceleration of 10m s-2force applied is
A. 10N
B. 50N
C. 2N
D. 20N

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