ECAT Pre General Science Physics Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 3 Motion and Force

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 3 Motion and Force

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ECAT Pre General Science Physics Chapter 3 Motion and Force

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Question # 1

A body falls freely from rest. It covers as much distance in the last second of its motion as covered in the first three seconds. The body has fallen for a time of

Question # 2

Which of the following four statements is false?

Question # 3

Distance traveled by a body falling from rest in the first, second and third second is in the ration of

Question # 4

During the upward motion of the projectile, the vertical component of velocity.

Question # 5

A body of weight 1 N has a kinetic energy of 1 joule when its speed is:

Question # 6

Angular momentum

Question # 7

If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters then its retardation should be

Question # 8

Acceleration produced in a body by the force varies

Question # 9

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

Question # 10

A car travels first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is

Question # 11

A train of 150 m length is going towards north direction at a speed of 10 ms-1. A parrot files at a speed of 5 ms-1towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to

Question # 12

Slope of velocity-time graph represents:

Question # 13

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

Question # 14

The magnitude of the displacement is a line from initial position to final position which is

Question # 15

Tick the conservation force:

Question # 16

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

Question # 17

When a body is moving with uniform positive acceleration, the velocity- time graph is a straight line. Its slope is

Question # 18

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

Question # 19

Slope of velocity time graph represents:

Question # 20

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?

Question # 21

A person is sitting in a traveling train and facing the engine. He tosses up a coin and the coin falls behind him. It can be concluded that the train is

Question # 22

A certain force gives an acceleration of 2 m/sec2to a body mass 5 kg. The same force would give a 20 kg object an acceleration of:

Question # 23

Inertia mass and gravitational mass are

Question # 24

One KWh is equal to:

Question # 25

Unit of impulse in

Question # 26

Tick the conservative force:

Question # 27

An object thrown in arbitrary direction in space with an initial velocity and moving freely under gravity will follow

Question # 28

In the expression F x t, the force F is

Question # 29

The direction of velocity is along the direction of

Question # 30

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 When a body is moving on a surface, the force of friction is called
A. Static friction
B. Dynamic friction
C. Limiting friction
D. Rolling friction
2 A typical rocket consumes about
A. 100 kg s-1of fuel
B. 1000 kg s-1of fuel
C. 10000 kg s-1of fuel
D. 100000 kg s-1of fuel
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 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
A. 45°
B. 60°
C. 50°
D. 40°
5 A monkey sits on the pan of spring scale kept in an elevator. The reading of the spring scale will be maximum when
A. Elevator is stationary
B. Elevator cable breaks and it falls freely towards earth
C. Elevator accelerates downwards
D. Elevator accelerates upward
6 A railway engine (mass 104kg) is moving with a speed of 73 km/h. The force which should be applied to bring it to rest over a distance of 20 m is
A. 3,600 N
B. 7,200 N
C. 10,000 N
D. 100,000 N
7 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:
A. 100 m/sec
B. 140 m/sec
C. 1960 m/sec
D. 196 m/sec
8 The shortest distance between two points directed from its initial point to final point is called:
A. Velocity
B. Displacement
C. Speed
D. Distance
9 In the expression F x t, the force F is
A. total force
B. instantaneous force
C. average force
D. all of them
10 Which quantity has the same dimension as that of impulse?
A. KE
B. Power
C. Momentum
D. Work

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