Physics MCQs

852 MCQs  (Page 73 of 86)

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Why Ballistic missile fails in some circumstances of precision ?
A. Due to their shape
B. Due to air resistance
C. Due to angle of projection
D. All of these
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A body is moving with uniform velocity. Its______________________?
A. Speed changes
B. Acceleration changes
C. Direction of motion changes
D. Displacement from origin changes
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When velocity time graph is a straight line parallel to time axis then__________________?
A. Acceleration is const
B. Acceleration is variable
C. Acceleration is zero
D. Velocity is zero
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Slope of velocity time graph is_____________________?
A. Acceleration
B. Distance
C. Force
D. Momentum
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Which law of motion is also called law of inertia ?
A. 1st law
B. 2nd law
C. 3rd law
D. All 1st, 2nd and 3rd laws
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Newtons laws do not hold good for particles_______________?
A. At rest
B. Moving slowly
C. Move with high velocity
D. Move with velocity comparable to velocity of light
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2nd law of motion gives the definition of________________?
A. Force
B. Acceleration
C. Velocity
D. Both force and acceleration
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When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________?
A. Centripetal force
B. Gravitational force
C. Their inertia
D. Centrifugal force
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What is the shape of velocity, time graph for constant acceleration ?
A. Straight inclined line.
B. Parabola
C. Inclined curve
D. Declined curve
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Which shows the correct relation between time of flight T and maximum height H ?
A. H=gt2/8
B. H=8t2/g
C. H=8g/t2
D. H=gt2
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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