Physics Past Questions

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

99 questions
Question 1 of 20 99 total questions
Question 21
waec 2010
Which of the following statements best describes a rigid body? A body which
Ais not equally deformed
Bwhen deformed regains it shape
Cis brittle
Dwhen deformed remains deformed
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Question 22
waec 2010

a body is projected horizonatlly from the top of a cliff 45m above the ground. if the body lands at a distance 30m from the foot of the cliff, calculate the speed of projection. [g = 10ms-2]

A10ms-1
B15ms-1
C20ms-1
D30ms-1
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Question 23
waec 2010
The average speed of an object is determined by dividing the sum of its initial and final speeds by two only when the acceleration is
Achanging
Buniform
Cincreasing
Ddecreasing
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Question 24
waec 2010
Two cars X and Y travelling in opposite directions along the same high way at uniform velocities 110 kmh-1 and 90kmh-1 respectively pass each other at a certain point. The velocity of X relative to Y at the time they pass each other is
A200 kmh-1
B100 kmh-1
C40 kmh-1
D20 kmh-1
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Question 25
waec 2010

Which of the following statements about moving particle is correct?

Aif the resultant force acting on the particle is zero, then it is in dynamic equillibrium
BIf the resultant force acting on the acting on the particle is greater than zero, then it is moving with a uniform velocity
Cthe rate of change of its momentum with time tales place in a direction opposite to that of its motion
Dthe particle falling freely covers equal distances in equal time interval
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Question 26
waec 2010

Which of the following statements about static friction is correct? It

Ais independent of the nature of the surface in contact
Bdepends on the area of surface in contact
Cdepends on the relative motion between the surface in contact
Ddepends on the weight of the moving body
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Question 27
waec 2010
The types of motion which a cylindrical drum rolling down an inclined plane undergoes are
Acircular and translational
Brotational and translational
Crotational and circular
Drectilinear and circular
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Question 28
waec 2010
What is the density of a fuel of relative density 0.72? [Density of water = 1000kg m-3]
A72 kgm-3
B720 kgm-3
C7200 kgm-3
D72000 kgm-3
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Question 29
waec 2010
Which of the following instruments is best for measuring the diameter of a thin constantan wire?
Acallipers
Bmetre rule
Cmicometer screw guage
Dvernier callipers
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Question 30
waec 2010
Which of the following properties of a long steel bar would alter if the bar were melted, recast into a cube and allowed to cool to its original temperature?
Asensity
Bvolume
Cspecific heat capacity
Delectrical resistance
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Question 31
jamb 2010

The radioisotope \( ^{235}_{92}U \) decays by emitting two alpha particles, three beta particles and a gamma ray. What is the mass and atomic number of the resulting element?

A215 and 88
B91 and 227
C227 and 91
D92 and 238
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Question 32
jamb 2010

An object is weighed at different locations on the Earth. What will be the right observation?

ABoth the mass and weight vary
BThe weight is constant while the mass varies
CThe mass is constant while the weight varies
DBoth the mass and weight are constant
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Question 33
jamb 2010

The process whereby a substance changes from a solid to liquid when heat is applied, is called?

AEvaporation
BVaporization
CFission
DFusion
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Question 34
jamb 2010

In Faradays law of electrolysis, a graph of the mass deposited against the quantity of electricity is plotted. The slope of the graph gives?

Athe energy released
Bthe electrochemical equivalent
Cthe current flowing
Dthe charge released
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Question 35
jamb 2010

In the diagram above, if the south-poles of two magnets strokes steel bar, the polarities at T and V will respectively be

Asouth and north
Bnorth and south
Cnorth and north
Dsouth and south
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Question 36
jamb 2010

In the diagram above, a 200 W bulb is lighted by a 240 V a.c mains supply. If 1kwh is sold at N40, the cost of keeping the bulb lighted for a day is?

AN1,920.00
BN192.00
CN19.20
DN1.92
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Question 37
jamb 2010
Three 4Ω resistors connected in parallel have a potential difference of 16 V applied across them. What is the total current in the circuit?
A14 A
B12 A
C10 A
D8 A
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Question 38
jamb 2010
The diagram above shows a balanced metre bridge, the value of x is
A75.0 cm
B66.7 cm
C33.3 cm
D25.0 cm
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Question 39
jamb 2010

A cell of e.m.f 12V and internal resistance 4Ω is connected to an external resistor of resistance 2Ω. Find the current flow.

A5 A
B4 A
C3 A
D2 A
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Question 40
jamb 2010

Three capacitors of capacitance 2μF, 4μFand 8μF are connected in parallel and a P.D of 6V is maintained across each capacitor, the total energy stored is?

A2.52 x 10-6J
B6.90 x 10-6J
C2.52 x 10-4J
D6.90 x 10-4J
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