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 projectile on its path gets divided into two pieces at its highest point. Which is true?

Question # 2

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

Question # 3

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?

Question # 4

A body of mass 5 kg is acted upon by a constant force of 20 n for 7 seconds. The total change in momentum will be:

Question # 5

The path described by a projectile is called its

Question # 6

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

Question # 7

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

Question # 8

In an elevator moving vertically up with an acceleration 'g' the force exerted on the floor by a passenger of mass M is

Question # 9

Force is a:

Question # 10

Distance covered by a freely falling body in 2 sec will be

Question # 11

Which one of the following is dimensionless.

Question # 12

The short distance between two points direction from its initial point to final point is called:

Question # 13

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

Question # 14

For maximum linear distance of travel, a projectile must be fired at an angle of

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 Laws of motion are not valid in a system which is
A. inertial
B. non-interial
C. at rest
D. moving with uniform velocity
3 An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then
A. It still moves with the same velocity
B. It will be just floating at the same point in space
C. It will be fall down instantaneously
D. It will lose its velocity gradually
4 The SI units of momentum is
A. kg m s-2
B. kg ms
C. kg m s2
D. N-s
5 Tick the conservation force:
A. Tension in a string
B. Air resistance string
C. Elastic spring force
D. Frictional force
6 The linear momentum of the body is defined as
A. p=ma
B. p=1/2ma
C. p=mv
D. p=1/2mv
7 The motion of a body in a straight line is the motion in
A. one dimension
B. two dimension
C. three dimension
D. four dimension
8 Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2
A. 0.064 m
B. 640 cm
C. 64 cm
D. 64 m
9 Which one of the following is dimensionless:
A. Acceleration
B. Velocity
C. Density
D. Angle
10 According to the law of conservation of linear momentum, the total linear momentum of an isolated system
A. increases
B. decreases with time
C. remains constant
D. none of them

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