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

The area under line velocity-time graph is numerically equal to the

Question # 2

A ball of mass m moving with uniform speed collides elastically with another stationary ball. The incident ball will lose maximum kinetic energy when mass of the stationary ball is

Question # 3

Biomass includes:

Question # 4

When a bicycle is in motion, the frictional forces exerted by the ground are

Question # 5

A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh-1. its acceleration will be

Question # 6

If the velocity time graph is a straight line parallel to the time-axis, then it means:

Question # 7

Bodies failing freely under gravity provide good example of motion under

Question # 8

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

Question # 9

The motion of a body in a straight line is the motion in

Question # 10

Distance covered by a freely failing body n the first second of its motion will be:

Question # 11

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine, is (Take g=9.8 m/s2)

Question # 12

The vertical component of velocity of a projectile during its motion is minimum

Question # 13

The dimension of linear inertia is:

Question # 14

In velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is

Question # 15

An aircraft is moving with a velocity of 300 ms-1. If all the forces acting on it are balanced, then

Question # 16

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

Question # 17

A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds?

Question # 18

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 # 19

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

Question # 20

When a shell explodes in mid-air, its fragments fly off in

Question # 21

Acceleration of a body is positive, if the velocity of the body is

Question # 22

A cold soft drink is kept on the balance. When the cap is opened, then the weight

Question # 23

The distance covered by a body in unit time is called.

Question # 24

A mass of 5kg moves with an acceleration of 10m s-2force applied is

Question # 25

Angular momentum

Question # 26

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

Question # 27

A body moving with uniform velocity has

Question # 28

For a fixed force, larger is the mass of a body the

Question # 29

Root out of the conventional source of energy:

Question # 30

A stone is dropped from rest from the top of a tower 19.6 m high. The distance traveled during the last second of its fall is (giving g=9.8 m/ss)

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ECAT Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 In the expression F x t, the force F is
A. total force
B. instantaneous force
C. average force
D. all of them
2 For a given angle of projection, if the time of flight of a projectile is doubled, the horizontal range will increases to
A. Four times
B. Thrice
C. Once
D. Twice
3 During the upward motion of the projectile, the vertical component of velocity:
A. Decreases
B. Increases
C. Remains constant
D. None of these
4 A body is thrown from a height h with speed u, it hits the ground with speed V
A. The value of V is maximum if the body is thrown vertically downward
B. The value of V is maximum if the body is thrown vertically upwards
C. The value of V is minimum if the body is thrown horizontally
D. The value of V does not depend on the direction of which it is thrown
5 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass:
A. 2 kg
B. 3 kg
C. 4 kg
D. 8 kg
6 Which of the following is not a projectile
A. a bullet fired from a gun
B. a space ship
C. a football in air
D. an artillery shell
7 The product of force and time is called
A. acceleration
B. linear momentum
C. angular momentum
D. impulse
8 Slope of velocity-time graph represents:
A. Acceleration
B. Speed
C. Torque
D. Work
9 Distance traveled by a body falling from rest in the first, second and third second is in the ration of
A. 1 : 2 : 3
B. 1 : 3 : 5
C. 1 : 4 : 9
D. None of the above
10 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

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