Physics WAEC Past Questions

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Which of the following is a derived unit?

A. Metre
B. Coulomb
C. Kilogram
D. Second
E. Ampere

View Answer & Discuss (1) WAEC 1989

An engine raises 1000kg of water through a height of 60m in 20s. What is the power of the engine? (Take g = 10ms^-2>).

A. 120,000 W
B. 30,000 W
C. 333 W
D. 300 W
E. 30 W

View Answer & Discuss (5) WAEC 1989

A thermometer has its stem marked in millimeter instead of degree Celsius. The lower fixed point is 30mm and the upper is 180mm. Calculate the temperature in degree celsius when the thermometer reads 45mm.

A. 67.5^oC
B. 30.0^oC
C. 25.0^oC
D. 15.0^oC
E. 10.0^oC

View Answer & Discuss WAEC 1989

Which of the following surfaces will radiate heat energy best?

A. Red
B. White
C. Black
D. Yellow
E. Blue

View Answer & Discuss (3) WAEC 1989

Which of the followiempeng statements is/are not correct?

A. Evaporation takes place only at the surface of the liquid
B. Boiling takes place throughout the volume of the liquid
C. Evaportaion takes place at all temperatures
D. Boiling takes place at a particular temperature for a liquid at a fixed external pressure
E. The boiling point of a liquid is not affected by impurities

View Answer & Discuss (3) WAEC 1989

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