Physics Past Questions

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

139 questions
Question 1 of 19 139 total questions
Question 61
jamb 2009

Musical instruments playing the same note can be distinguished from one another owing to the differences in their?

Aquality
Bpitch
Cintensity
Dloudness
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Question 62
jamb 2009

Metal cables are used as telephone wires because?

Athey are cheap
Bthey are sourced locally
Cthe speed of sound in them is very low
Dthe speed of sound in them is very high
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Question 63
jamb 2009

A man standing 2 m from a charcoal fire is warmed mainly by?

Aconvection
Bradiation
Crefraction
Dconduction
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Question 64
jamb 2009

It is observed that water will wet a clean glass because the?

Acohesion of water to glass is stronger than the cohesion of water molecules
Badhesion of water molecules is weaker than the cohesion of water to glass
Ccohesion of water to glass is weaker than the cohesion of water molecules
Dadhesion of water molecules is stronger than the cohesion of water molecules
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Question 65
jamb 2009

A heating coil rated 1000 W is used to boil off completely 2 kg of boiling water. The time required to boil the water is?
[Special latent heat of Vaporization of water = 2.3 x 10\(^6\) Jkg-1]

A1.15 x 104s
B1.15 x 103s
C4.6 x 104s
D4.6 x 103s
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Question 66
jamb 2009

If the pressure of the vapor on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?

Aroom temperature
Bboiling point
Cfreezing point
Dstandard temperature
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Question 67
jamb 2009

An electric heater rated 220V, 1000 W is immersed into a bucket full of water. Calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds. [specific heat capacity of water = 4200 jkg-1 K-1]

A4.28 kg
B42.86 kg
C1.02 kg
D7.14 kg
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Question 68
jamb 2009

At 4°c, the volume of a fixed mass of water is?

Aconstant
Bminimum
Cmaximum
Dzero
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Question 69
jamb 2009

The thermometer whose reading is indicated by a change in color of its thermometric property is the?

Abi-metalic strip thermometer
Bthermocouple
Cplatinium resistance thermometer
Doptical pyrometer
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Question 70
jamb 2009

A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is?

A1400 kgm-3
B1250 kgm-3
C500 kgm-3
D1000 kgm-3
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Question 71
jamb 2009

If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?

A6.0 x 10-2J
B7.6 x 10-2J
C1.8 x 10-2J
D6.6 x 10-2J
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Question 72
jamb 2009

I. Density of the liquid.
II. Acceleration due to gravity.
III. Type of container of the liquid.
IV. The constituents of the liquid.
which of the above conditions will NOT affect the pressure of fluid?

AI and III only
BII and III only
CIII and IV only
DI and II only
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Question 73
jamb 2009

If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be?

A3.0
B3.1
C3.2
D2.0
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Question 74
jamb 2009

An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500 N. Find the coefficient of static friction.
[g = 10 ms\(^{-2}\)]

A0.8
B0.4
C1.0
D0.6
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Question 75
jamb 2009

If a cage containing a truck of coal weighing 750 kg is raised to a height of 90 m in a minute, what is the total power expended?
[g = 10 m\s\(^2\)]

A11.50 kw
B12.60 kw
C11.25 kw
D12.10 kw
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Question 76
jamb 2009

I. The motion of the tyres of a moving car.
II. The motion of a loaded test tube oscillated
vertically.
III. The beating of the heart.
IV. A stone tied to a string and whirled round.
V. The motion of the pistons in a gasoline engine.
Which of the motions above is simple harmonic?

AIII, IV and V only
BII, III and V only
CII, III and IV only
DI,II and III only
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Question 77
jamb 2009

A bullet fired vertically upward from a gun held 2.0 m above the ground reaches its maximum height in 4.0s. calculate its initial velocity.
[g = 10ms\(^-2\)]

A10 ms-1
B8 ms-1
C40 ms-1
D20 ms-1
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Question 78
jamb 2009

What is the acceleration between two points on a velocity time graph which has coordinates
(10s, 15 ms-1)
and (20 s, 35 ms-1)?

A1.7 ms-2
B3.50 ms-2
C1.00 ms-2
D2.00 ms-2
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Question 79
jamb 2009
I. Diameter of a small ball bearing.
II. Thickness of a pieces of paper.
III. Diameter of a measuring cylinder.
IV. Length of a piece of wire.
Which of the above can be measured using a micrometer screw gauge?
AI, II and IV only .
BI and II only
CII and III only
DIII and IV only
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