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

Acceleration of a body is negative if the velocity of the body is

Question # 2

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

Question # 3

The path (or trajectory) described by a projectile is

Question # 4

For a moving body, at any instant of time

Question # 5

A ball is dropped downwards After 1 second another ball is dropped downwards from the same point. What is the distance between them after 3 seconds

Question # 6

The mass of the object is a quantities measure of its

Question # 7

Graphs which are used to illustrate the variation of velocity of an object with time are called

Question # 8

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?

Question # 9

Range of a projectile is R, when the angle of projection is 30° . Then, the value of the other angle of projection for the same range, is

Question # 10

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Question # 11

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

Question # 12

The velocity given to a body to go out of the influence of earth's gravity is known as:

Question # 13

Acceleration produced in a body by the force varies

Question # 14

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

Question # 15

Blomass includes:

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
2 The mass of the object is a quantities measure of its
A. speed
B. velocity
C. acceleration
D. inertia
3 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
4 Which quantity has the same units as impulse
A. force
B. work
C. linear momentum
D. acceleration
5 An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow
A. a circular path
B. a straight line
C. a hyperbola
D. a parabola
6 Essential characteristic of equilibrium is
A. Momentum equal to zero
B. Acceleration equal to zero
C. Kinetic energy equal to zero
D. Velocity equal to zero
7 If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
8 One KWh is equal to:
A. 3.6 x 102J
B. 3.6 KJ
C. 3,6 x 101KJ
D. 3,6 MJ
9 A vehicle of mass 120 kg is moving with a uniform velocity of 108 km/h. The force required to stop the vehicle in 10s is
A. 120 x 10.8 N
B. 180 N
C. 720 N
D. 360 N
10 When brakes are applied to a fast moving car, the passenger will be thrown:
A. Forward
B. Backward
C. Downward
D. none of these

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