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

Find the total displacement of a body in 8 seconds starting from rest with an acceleration of 20 cm/s2

Question # 2

During the projectile motion, the horizontal component of velocity

Question # 3

The quantity F x t is called as

Question # 4

What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?

Question # 5

The slopes of the tangent at any point on the curve gives the value of the

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

What must be changing when a body is accelerating uniformly?

Question # 10

Acceleration in a body is always produced in the direction of :

Question # 11

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

Question # 12

If d is the displacement of the body in time t, then its average velocity will be

Question # 13

Flight of rocket in the space is an example of

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 If an iron ball and a wooden ball of the same radius was released from a height 'h' in vacuum, then time taken by both of them to reach ground will be
A. Unequal
B. Exactly equal
C. Roughly equal
D. Zero
2 Angular momentum
A. Scalar
B. Axial vector
C. Polar vector
D. At 45° angle
3 The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:
A. 3 N
B. 4 N
C. 5 N
D. 6 N
4 By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second ( g=10m/s2)
A. 58.8 m/s
B. 49 m/s
C. 65 m/s
D. 19.6 m/s
5 Rocket engines lift a rocket from the earth surface, because hot gas with high velocity
A. Push against the air
B. React against the rocket and push it up
C. Heat up the air which lifts the rocket
D. Push against the earth
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 A boat of mass 40 kg is at rest, A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?
A. 4 m/s
B. 2 m/s
C. 8 m/s
D. 1 m/s
8 The path followed by the projectile is known as:
A. Cycle
B. Hyperbola
C. Trajectory
D. Route
9 A body whose momentum is constant must have constant
A. Acceleration
B. Velocity
C. Force
D. None of these
10 When body moves with increasing acceleration, its velocity time graph is a
A. straight line
B. horizontal straight line
C. vertical straight line
D. curve

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