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Online Tests
ECAT Physics Chapter 3 Motion and Force Online Test MCQs With Answers
Question # 1
When a bicycle is in motion but not pedaled, the force of friction exerted by the ground on the two wheels is such that it acts
Choose an answer
In the backward direction on the front wheel and in the forward direction on the rear wheel
In the forwards directions on the front wheel and in the backward direction on the rear wheel
In the forward direction on both the wheels
In the backward direction on both the wheels
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Question # 2
The time of flight of a projectile motion equal to
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half of the time to reach maximum height
twice the time to reach maximum height
one fourth of time to reach maximum height
time to reach maximum height
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Question # 3
When body moves with increasing acceleration, its velocity time graph is a
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straight line
horizontal straight line
vertical straight line
curve
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Question # 4
The instantaneous velocity is define as the limiting value of Δd/Δt on the time intervalΔt approaches to
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zero
maximum
minimum
infinity
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Question # 5
The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is:
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3 N
4 N
5 N
6 N
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Question # 6
A body starting from rest covers a distance of 0.45 Km and acquires a velocity of 300 Kmh
-1
. its acceleration will be
Choose an answer
7.71 m s
-2
0.5m s
-2
0.15m s
-2
0.092m s
-2
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Question # 7
A ball is dropped from a height of 4.2 meters. To what height it will rise if there is no loss of KE after rebounding?
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4.2 m
8.4
12.6
None of these
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Question # 8
Acceleration produced in a body by a force varies
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inversely as the applied force
directly as the applied force
directly as the mass of the body
none of them
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Question # 9
The decrease in velocity per unit time is called
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deceleration
acceleration
uniform acceleration
variable acceleration
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Question # 10
The product of force and time is called
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acceleration
linear momentum
angular momentum
impulse
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Question # 11
The linear momentum of the body is defined as
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p=ma
p=1/2ma
p=mv
p=1/2mv
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Question # 12
Which quantity has the same units as impulse
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force
work
linear momentum
acceleration
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Question # 13
The path (or trajectory) described by a projectile is
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a parabola
a hyperbola
a circle
a straight line
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Question # 14
A ball is dropped from a certain height and another ball is projected horizontally from the same point. Which of the following statement is correct?
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Both hit the ground at the same veloctiy
Both hit the ground at the same speed
The change of velocity during the path for both balls is the same
The change of speed during the path for both balls is the same
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Question # 15
When a body is moving on a surface, the force of friction is called
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Static friction
Dynamic friction
Limiting friction
Rolling friction
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Question # 16
A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is
Choose an answer
0.15 x 10
-3
Ns
0.98 x 10
-3
Ns
1.5 x 10
-3
Ns
2.5 x 10
-3
Ns
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