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95 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10

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95 questions

Question 1 of 20 95 total questions

Question 21

waec 2016

The diagram given illustrates a force-distance graph for the motion of a wooden block. Determine the work done on the block when moved through a distance of 5m.

A4J

B15J

C5J

D100J

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Question 22

waec 2016

An object of volume 400cm³ and 2.5gcm^-3 is suspended from a spring balance with half its volume immersed in water. Determine the reading on the spring balance. (Density of water = 1gcm^-3)

A1200g

B1000g

C800g

D400g

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Question 23

waec 2016

Which of the following substances lowers the surface tension of water?

Ametal

Bsand

Cdetergent

Dpaper

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Question 24

waec 2016

A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases.

Ai only

Bi and ii only

Cii and iii only

Di, ii and iii

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Question 25

waec 2016

The diagram given, represents the graph of stress against strain for an elastic wire. The point Q on the graph is the

Aelastic linit

Bbreaking point

Cyield point

Dproportional limit

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Question 26

waec 2016

A student measures the volume of a liquid using a measuring cylinder. What else needs to be measured by the student in order to determine the density of the liquid?

Adepth of the liquid in the cylinder

Bmass of the cylinder

Cmass of the liquid

Dtempersture of the liquid

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Question 27

waec 2016

The dimensions of momentum are

AMLT

BML^-1T^-1

CMLT^-1

DML^-1T

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Question 28

jamb 2016

The frequency of beats produced when two tunning forks of frequencies 258Hz and 270Hz are sounded close to each other

A6Hz

B264Hz

C528Hz

D12Hz

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Question 29

jamb 2016

Which of the following statements is Not true about atoms?

AAtom of different elements have different atomic weights

BThe mass of an atom is concentrated in the nucleus

CAn atom is made up of a nucleus and number of electrons

DAtoms of all elements are identical

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Question 30

jamb 2016

In the diagram above, the direction of the force between N and S in the magnetic field is

AMP

BSN

CNS

DPM

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Question 31

jamb 2016

From the diagram above, the measuring accuracy of the micrometer screw gauge is

A4.78mm

B4.16mm

C4.66mm

D4.70mm

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Question 32

jamb 2016

In the diagram above, the neutral point is at

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Question 33

jamb 2016

In the diagram above, which of the following velocity-time graphs shows uniform acceleration of a body from rest?

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Question 34

jamb 2016

If the magnification of a virtual image formed by an object 10cm from a convex less is 3, then the focal length of the lens is

A10cm

B20cm

C25cm

D15cm

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Question 35

jamb 2016

Boiling occurs when the vapour pressure of a liquid is

AAt the evaporation point

BLess than the atmospheric pressure

CGreater than the atmospheric pressure

DEqual to the atmospheric pressure

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Question 36

jamb 2016

The impulse of a force is deduced from Newton's second law as

AF = ma

BF = m( \(\frac{v - u}{t}\))

CF = mg

DF = mv - mu

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Question 37

jamb 2016

A body which weighs 50N in air displaces 3.7kg of water when partially immersed in water. Calculate the upthrust on the body?

A8.7N

B37.0N

C87.0N

D13.0N

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Question 38

jamb 2016

A manometer is an instrument used for measuring

ARelative density of liquid

BPressure in liquids and gases

CHumidity

DAtmospheric pressure

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Question 39

jamb 2016

A satellite revolving around the earth is kept on its orbit by?

ACentripetal forces only

BCentripetal and frictional forces

CCentrifugal forces only

DCentripetal and centrifugal forces

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Question 40

jamb 2016

Which of the following statements about wave motion is correct?

AElectromagnetic waves are transverse

BTransverse waves do not require a medium for propagation

CLongitudinal waves vibrate perpendicular to the direction of travel

DAll mechanical waves are longitudinal

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