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Monday, 20 April 2026
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Physics Past Questions and Answers

Topic: using the theory to explain:

Jamb Physics Questions - using the theory to explain:

Question 6:
If the volume of a fixed mass of a gas is kept constant, the pressure of the gas
  • A Is inversely proprotional to its centigrade temperature
  • B Is inversely proportional to its absolute temperature
  • C Is directly proportional to its centigrade temperature
  • D Is directly proportional to its absolute temperature
  • E Remains constant also
View Answer & Explanation
Question 7:
a balloon inflated with helium gas at ground level is released. As it rises through a constant temperature atmosphere.
  • A Its pressuren reduces but volume remains constant
  • B Te product of pressure and volume remains constant
  • C Both pressure and volume increases
  • D Its pressure remains constant but the volume decreases
  • E Both pressure and volume remains constant
View Answer & Explanation
Question 8:
Change of state is accompanied by change of
  • A Temperature
  • B Volume
  • C Heat content
  • D Temperatureb and volume
  • E Volume and heat content
View Answer & Explanation
Question 9:
The tyre pressure of a car was found to be 150cmHg in the morning at a temperature of 27°C. Hard driving in the afternoon raised the temperature of the tyres by 57°C. The tyre pressure had by the afternoon was
  • A Increased by 15.0cm Hg
  • B Decreased by 15.0cm Hg
  • C Increased by 22.50cm
  • D Decreased by 22.50cm Hg
  • E Remained constant
View Answer & Explanation
Question 10:
If the pressure on 100cm3 of an ideal gas is doubled while its kelvin temperature is halved, then the new volume of the gas will become
  • A 25cm<sup style='font-size: smaller;'>3</sup>
  • B 50cm<sup style='font-size: smaller;'>3</sup>
  • C 100cm<sup style='font-size: smaller;'>3</sup>
  • D 200cm<sup style='font-size: smaller;'>3</sup>
  • E 400cm<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation