Physics Past Questions

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

47 questions
Question 1 of 7 47 total questions
Question 21
waec 2008
A very sensitive spring balance was used to determine the weight of an object at the north pole. When the same spring balance was used to measure the weight of the same object at the equator, it was found to reduce. The explanation for this observation is that
Ait is very hot at the equator
Bthe spring balance has expanded
Cthe acceleration of free fall due to gravity varies with location
Dthe mass of the body is reduced
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Question 22
waec 2008

A rectangular block of dimensions 2.0m x 1.0m x 0.5m weighs 200N. calculate the maximum pressure exerted by the block on a horizontal floor.

A100Nm-2
B200Nm-2
C300Nm-2
D400Nm-2
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Question 23
waec 2008
A car travelling with a uniform velocity of 30ms-1 along a horizontal road overcomes a constant frictional force of 600N. Calculate the power of the engine of the car
A18kW
B20kW
C180kW
D200kW
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Question 24
waec 2008
Which of the following is/are in random motion? i. Pollen grains in water ii. The molecules of hydrogen gas ii. Fine chalk particles floating in air
Ai and ii only
Bi and iii only
Cii and iii only
Di, ii and iii
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Question 25
waec 2008
which of the following statements about Archimedes' principle is correct? The upthrust on a body is a measure of the
Amass of fluid displaced
Bweight of the body
Cvolume of the body
Dweight of the fluid displaced
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Question 26
waec 2008
Which of the following sets of quantities is fundamental?
Alength, mass and time
Bspeed, length and time
Cspeed, mass and distance
Ddistance, speed and time
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Question 27
waec 2008

If the air inside a rigid box is heated, the i, average speed of the molecules increases ii. pressure of the air increases iii. average separation of the molecule increases. Which of the statements above are correct?

Ai and ii only
Bii and iii only
Ci and iii only
Di, ii and iii
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