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115 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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115 questions

Question 1 of 20 115 total questions

Question 21

waec 2015

In a school compound a girl walks 40m due east from the laboratory to the staff room to submit her report. Then she returns and walks 30m due north to her classroom. Determine the magnitude of her displacement from the10m laboratory

A10m

B35m

C50m

D70m

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Question 22

waec 2015

Which of the following statements describes a body in a stable equilibrium correctly?

Aa person walking on a tight-rope

Bball on a smooth horizontal table

Cball resting on an inverted hemisphere bowl

Dball in the middle of a nemispherical bowl

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Question 23

waec 2015

A body is projected with an initial velocity U at an angle O to the horizontal. The time taken by it to reach its maximum height is given by the expression

A\(\frac{2u \text{sin}\theta}{g}\)

B\(\frac{u^2 \text{sin}^2\theta}{2g}\)

C\(\frac{u \text{sin}\theta}{g}\)

D\(\frac{u \text{sin}\theta}{2g}\)

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Question 24

waec 2015

The slope of a straight-line velocity-time graph represents

Auniform acceleration

Buniform speed

Ctotal distance travelled

Dworkdone

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Question 25

waec 2015

The resultant force in a couple is

Azero

Binfinite

Cthe sum of the forces

Dthr product of the forces

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Question 26

waec 2015

An object floats in a fluid when it displaces it's

Avolume of liquid in which it floats

Bmass of fluid in which it foats

Cweith of fluid in which it foats

Ddensity of fluid in which it foats

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Question 27

waec 2015

The barometric reading at a place is 73.5m Hg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place. [g = 10ms\(^{-2}\), density of mercury = 1.2 x 10\(^4\)kg m\(^{-3}\), density of water = 1.0 x 10\(^3\)m\(^{-3}\)]

A4.0 x 10⁵ Nm^-2

B3.0 x 10 ⁵ Nm^-2

C2.0 x 10⁵ Nm^-2

D1.0 x 10⁵ Nm^-2

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Question 28

waec 2015

Which of the following units is derived?

Akg

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Question 29

waec 2015

Materials that can be stretched and still return to their original forms when the stresses are removed are said be

Aelastic

Belastomer

Cplastic

Dthermoplastic

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Question 30

waec 2015

Which of the following statements about mass and weight are correct? i. Weight is the force of gravity on a body. ii. The mass of a body is the quantity of matter in the body. iii. The weight of a body is greatest at the equator. iv. The mass of a body is greatest at the poles

Ai and ii only

Bi and iii only

Cii and iv only

Diii and iv only

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Question 31

jamb 2015

An alternating current with a frequency of 100HZ has a period of

A0.03sec

B0.01sec

C0.04sec

D0.15sec

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Question 32

jamb 2015

Momentum and Kinetic energy are conserved in

AInelastic collision

BElastic collision

CExplosion

DSpacecraft

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Question 33

jamb 2015

The property of a body to remain at rest or to continue to move in a straight line is known as

Aforce

BImpulse

CEnergy

DInertia

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Question 34

jamb 2015

The normal temperature of human body is record at what ranges?

A27°C to 43°C

B30°C to 40°

C98.4°C only

DBetween 35°C to 37°C

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Question 35

jamb 2015

In an inelastic collision

I. Energy is conserved
II. Energy is decreased
III. Energy is increased
IV. Linear momentum conserved

AI only

BII and IV only

CII only

DIII only

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Question 36

jamb 2015

Which of the following instrument is most accurately for comparing electromotive force (e.m.f) of two cells?

AVoltmeter

BMeter rule

CGalvanometer

DPotentiometer

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Question 37

jamb 2015

When a man moves toward a plane mirror at a speed of 6m/s, the distance the man and his image increased at a speed of?

A2 m/s

B4 m/s

C12 m/s

D14 m/s

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Question 38

jamb 2015

Volatile liquids usually

AHave high boiling points

Bhave low boiling points

Chave high densities

Dhave high melting points

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Question 39

jamb 2015

Efficiency of a transformer is equal to

AEfficiency of transformer = (secondary coil ÷ primary coil) × 100%

BEfficiency of transformer = (mechanical advantage ÷ velocity ratio) × 100%

CEfficiency of a transformer = (Number of turns in the secondary coil ÷ Number of turns in the primary coil) × 100%

DEfficiency of a transformer = (power developed in the secondary coil ÷ power supplied to the primary coil) × 100%

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Question 40

jamb 2015

Which one of the following is a vector quantity?

ATemperature gradient

BMass

CWork

DTime

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