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Online Tests
ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
At the top of the trajectory of a projectile the acceleration is
Choose an answer
The maximum
The minimum
Zero
g
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Question # 2
The product of force and time is called
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acceleration
linear momentum
angular momentum
impulse
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Question # 3
A body is thrown from a height h with speed u, it hits the ground with speed V
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The value of V is maximum if the body is thrown vertically downward
The value of V is maximum if the body is thrown vertically upwards
The value of V is minimum if the body is thrown horizontally
The value of V does not depend on the direction of which it is thrown
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Question # 4
Newton's first law is also called:
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Law of torque
Law of force
Law of inertia
None of these
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Question # 5
Distance covered by a freely falling body in 2 sec will be
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4.9 m
19.6 m
29.2 m
44.1 m
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Question # 6
Which of the following is not a projectile
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a bullet fired from a gun
a space ship
a football in air
an artillery shell
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Question # 7
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
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Moving forward and gaining speed
Moving forward and losing speed
Moving forward with uniform speed
Moving backward with uniform speed
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Question # 8
The collision in which KE is conserved but momentum is not conserved is called:
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Elastic collision
Inelastic collision
any these
None of these
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Question # 9
The velocity given to a body to go out of the influence of earth's gravity is known as:
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Terminal velocity
Orbital velocity
Escape velocity
None of these
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Question # 10
When a horse pulls a cart, the force that makes the horse run forward is the force exerted by
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The horse on the ground
The horse on the cart
The ground on the horse
The ground on the cart
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Question # 11
Blomass includes:
Choose an answer
Crop residue
Natural vegetation
Animal dung
All of these
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Question # 12
The projectile attains maximum horizontal range when it is projected at an angle of
Choose an answer
30
°
45
°
60
°
75
°
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Question # 13
When a bicycle is in motion, the frictional forces exerted by the ground are
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In the forward direction on both the wheels
In the backward direction on both the wheels
In the forward direction on the front wheel and the backward direction on the rear wheel
In the backward direction on the front wheel and the forward direction on the rear wheel
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Question # 14
If the values of instantaneous and average velocities are equal, the body is said to be moving with
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uniform acceleration
uniform speed
variable velocity
uniform velocity
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Question # 15
Distance covered by a freely failing body n the first second of its motion will be:
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4.9 m
9.8 m
19.6 m
29.4 m
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Question # 16
A railway engine (mass 10
4
kg) 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
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3,600 N
7,200 N
10,000 N
100,000 N
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