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Physics Past Questions

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49 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

49 questions
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Question 1 of 9 49 total questions
Question 21
jamb 2011

A copper wire was subjected to a tensile stress of 7.7 x 10\(^7\). Calculate the strain of the wire.
[Young modules = 1.1 x 10\(^11\) Nm\(^{-2}\)]

A2. 0 x 10-5
B7.0 x 10-3
C7.0 x 10-4
D2.2 x 10-4
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Question 22
jamb 2011

A metal of volume 40 cm\(^3\) is heated from 30 °c to 90 °c, the increase in volume is

[Linear expansivity of the metal = 2.0 x 10\(^{-5}\)K\(^{-1}\)]

A0.12 cm3
B4.00 cm3
C1.20 cm3
D0.40 cm3
Eno correct option
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Question 23
jamb 2011
An object weighs 22 kg in water and 30kg in air. what is the upthrust exerted by the liquid on the object.


[g = 10 ms2]
A50 N
B520 N
C220 N
D80 N
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Question 24
jamb 2011
If a tube of small radius opened at both ends is placed in a liquid, the liquid will
Aremain at the same level irrespective of whether the liquid wet the glass or not
Bfall below the liquid level if the liquid wets the glass
Cfalls below the liquid level if the liquid does not wet the glass
Drise above the liquid level if the liquid does not wet the glass
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Question 25
jamb 2011
A carpenter on top of a roof of 20.0m high dropped a hammer of mass 1.5 kg and it fell directly to the ground. the kinetic energy of the hammer just before hitting the ground is?

[g = 10 ms-2]
A600 J
B150J
C300 J
D450 J
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Question 26
jamb 2011
An object of mass 2 kg moves with a velocity of 10 ms1 round at circle of radius 4 m. Calculate the centripetal force on the object
A25 N
B100 N
C50 N
D40 N
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Question 27
jamb 2011
If it takes an object 3s to fall freely to the ground from a certain height, what is the distance covered by the object?
A90 m
B30 m
C45 m
D60 m
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Question 28
jamb 2011

Two balls, X and Y, weighing 5 g and 50 kg respectively, were thrown up vertically at the same time with a velocity of 100 ms\(^{-1}\). How will their positions be one second later?

AX and Y will be 500 m from each other
BY will be 500 m ahead of X
CX will be 500 m ahead of Y
DX and Y both be 500 m from the point of throw
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Question 29
jamb 2011

A man standing on a lift that is descending does not feel any weight because

Athe inside of the lift is air tight
Bthe lift is in vacuum
Cthe lift's acceleration is same as acceleration due to gravity
Dthere is no gravitational pull on the man in the lift
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