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
Question 1 of 9 49 total questions
Question 21
jamb 2010

A hydrometer is an instrument used in measuring?

Avapour pressure of a fluid
Bdensity of liquid
Crelative humidity of a liquid
Drelative density of a liquid
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Question 22
jamb 2010

The accurate measurement of the relative density of a substance in its powdered form is done with a beam balance and?

Aa density bottle
Ban eureka can
Ca pipette
Da burette
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Question 23
jamb 2010

In a hydraulic press, the pump piston exerts a pressure of 100 pa on the liquid. what force is exerted in the second piston of cross sectional area 3 m2?

A300 N
B200 N
C150 N
D100 N
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Question 24
jamb 2010

If a wire 30 cm long is extended to 30.5 cm by a force of 300 N. find the strain energy of wire

A0.75 J
B7.50 J
C75.00 J
D750.00 J
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Question 25
jamb 2010

A machine of velocity ratio 6 requires an effort of 400 N to raise a load of 800 N through I m. Find the efficiency of the machine

A55. 6 %
B50.0%
C33.3%
D22.2%
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Question 26
jamb 2010

The surfaces of conveyor belts are made rough so as to?

Aprotect them while carrying loads
Bprevent the loads from slipping
Cenable them to carry more load
Dmake them stronger
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Question 27
jamb 2010

A car moves with an initial velocity of 25 ms\(^{-1}\) and reaches a velocity of 45 ms\(^{-1}\) in 10s. What is the acceleration of the car?

A2 ms-2
B5 ms-2
C20 ms-2
D25 ms-2
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Question 28
jamb 2010

A stone and a feather are dropped from the same height above the earth surface. Ignoring air resistance, which of the following is correct?

Athe feather will be blown away by the wind while stone will drop steadily
Bthe stone and the feather will both reach the ground at the same time
Cthe feather will reach the ground first
Dthe stone will reach the ground first
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Question 29
jamb 2010

Two cars moving in the same direction have speeds of 100 kmh\(^{-1}\) and 130 kmh\(^{-1}\). What is the velocity of the faster car as measured by an observer in the slower car?

A30 kmh-1
B130 kmh-1
C200 kmh
D230 kmh-1
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