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 a bicycle is in motion, the frictional forces exerted by the ground are

Question # 2

When a shell explodes in mid-air, its fragments fly off in

Question # 3

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

Question # 4

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 5

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

Question # 6

The path (or trajectory) described by a projectile is

Question # 7

A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?

Question # 8

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

Question # 9

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

Question # 10

If the instantaneous velocity of a body does not change. the body is said to be moving with

Question # 11

Work done along a closed path in a gravitational field is:

Question # 12

Rate of change of momentum is called

Question # 13

When a body is moving on a surface, the force of friction is called

Question # 14

If the acceleration of a body is not uniform, then velocity-time graph will be:

Question # 15

Rocket engines lift a rocket from the earth surface, because hot gas with high velocity

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The velocity of a projectile is maximum
A. at the point of projection
B. just before striking the ground
C. at none of them
D. at both of them
2 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
3 The consumption source if energy is:
A. Energy from blomass
B. Hydroelectric energy
C. Geothermal energy
D. None of these
4 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
5 Change in momentum is one second is called:
A. Impulse
B. Force
C. Energy
D. Work
6 Slope of velocity time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
7 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
8 Which of the following four statements is false?
A. A body can have zero velocity and still be accelerated
B. A body can have a constant velocity and still have a varying speed
C. A body can have a constant speed and still have a varying velocity
D. The direction of the velocity of a body can change when its acceleration is constant
9 A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about
A. 80 m
B. 20 m
C. 160 m
D. 40 m
10 For maximum linear distance of travel, a projectile must be fired at an angle of
A. 0°
B. 45°
C. 90°
D. 60°

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