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 effect of applying a force on a moving body is to change

Question # 2

Earth is considered to be

Question # 3

The vertical and horizontal range will be equal id angle of projection is

Question # 4

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

Question # 5

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

Question # 6

Which quantity has the same units as impulse

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The time rate of change of displacement is called:

Question # 11

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

Question # 12

The motion in a plane is the motion in

Question # 13

Newton published laws of motion in his famous book "principia" in

Question # 14

The linear momentum of the body is defined as

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The direction of the acceleration is the same as that of
A. speed
B. velocity
C. both of them
D. none of them
2 A snooker ball moving with velocity V collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of second snooker ball is
A. Zero
B. Infinity
C. V
D. 2 V
3 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
4 A car moves for half of its time at 80 km/h and rest half of time at 40 km/h, The total distance covered is 60 km. What is the average speed of the car?
A. 60 km/hr
B. 80 km/hr
C. 120 km/hr
D. 180 km/hr
5 Distance covered by a freely failing body n the first second of its motion will be:
A. 4.9 m
B. 9.8 m
C. 19.6 m
D. 29.4 m
6 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
7 The second law gives the relationship between
A. mass and velocity
B. force and acceleration
C. velocity and acceleration
D. mass and weight
8 During the upward motion of the projectile, the vertical component of velocity.
A. Decreases
B. Increases
C. Remains constant
D. None of these
9 A typical rocket ejects the burnt gases at speeds over
A. 400 ms-1
B. 40000m s-1
C. 40000 ms-1
D. 60000 ms-1
10 When the mass of the colliding body is much larger than the mass of the body at rest, its velocity after collision.
A. Becomes half
B. Becomes zero
C. Ramains same
D. Becomes double

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