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Physics 2004 WAEC Past Questions

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21
Which of the following values on the absolute scale of temperature is the ice point?
  • A. 0K
  • B. 32K
  • C. 100K
  • D. 273k
View Answer & Discuss (2) WAEC 2004
22
On a cold day, a concrete floor feels colder to the bear foot then a mat on the same floor because the
  • A. is better conductor of heat than the foot
  • B. mat loses heat to the bare foot at a faster rate
  • C. mat is better conductor of heat than the floor
  • D. concrete floor is a better conductor of heat than the mat
View Answer & Discuss WAEC 2004
23

When a metal ball is heated through 30oC,its volume becomes 1.0018cm3. If the linear expansivity of the material of the ball is 2.0 x 10-5 K-1, calculate its original volume

  • A. 1.0000cm3
  • B. 1.0020cm3
  • C. 1.0036cm3
  • D. 1.0180cm3
View Answer & Discuss (4) WAEC 2004
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24
A faulty barometer reads 72.6cm Hg when the atmospheric pressure is 75.0cm Hg. Calculate the atmospheric pressure when the barometer reads 72.0cn Hg
  • A. 79.4cm Hg
  • B. 74.38cm Hg
  • C. 74.2cm Hg
  • D. 69.4cm Hg
View Answer & Discuss WAEC 2004
25
On a basis of the kinetic theory, an increase in the temperature of a fixed volume of an ideal gas causes
  • A. a incease in the number of gas molecules
  • B. a decrease in the density of the gass
  • C. an increase in the average speed of the gas molecules
  • D. a decrease in pressure exerted by the gas
View Answer & Discuss (1) WAEC 2004
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