JAMB and WAEC Physics questions: Temperature and its measurement

22 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Temperature and its measurement· JAMB

   The constriction in a clinical thermometer

   • Astops the mercury from running back quickly into the bulb
   • Bmakes the thermometer more sensitive
   • Cincreases the range
   • Dprotects the bulb from breaking

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   Explanation and discussion

2. Question 2· Temperature and its measurement· JAMB

   A platinum resistance thermometer uses the change in

   • Avolume of a gas
   • Belectrical resistance with temperature
   • Clength of a liquid column
   • Dcolour of the metal

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   Explanation and discussion

3. Question 3· Temperature and its measurement· WAEC

   A thermocouple thermometer is suitable for measuring

   • Aliquid density
   • Bbody temperature only
   • Croom temperature only
   • Dvery high and rapidly changing temperatures

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   Explanation and discussion

4. Question 4· Temperature and its measurement· WAEC

   Mercury is used in thermometers because it

   • Ais colourless
   • Bexpands uniformly and does not wet glass
   • Cfreezes at 0 °C
   • Dis a poor conductor of heat

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5. Question 5· Temperature and its measurement· WAEC

   Express 27 °C on the kelvin scale.

   • A246 K
   • B300 K
   • C27 K
   • D327 K

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   Explanation and discussion

6. Question 6· Temperature and its measurement· JAMB

   Convert 77 °F to the Celsius scale.

   • A45 °C
   • B25 °C
   • C43 °C
   • D60 °C

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   Explanation and discussion

7. Question 7· Temperature and its measurement· JAMB

   A thermometer reads 20 mm at the ice point and 220 mm at the steam point. What temperature does a reading of 120 mm indicate?

   • A120 °C
   • B60 °C
   • C40 °C
   • D50 °C

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8. Question 8· Temperature and its measurement· JAMB

   A faulty thermometer reads 10 °C in melting ice and 90 °C in steam. What is the true temperature when it reads 30 °C?

   • A25 °C
   • B20 °C
   • C30 °C
   • D37.5 °C

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9. Question 9· Temperature and its measurement· JAMB

   Six's maximum and minimum thermometer contains

   • Aalcohol and mercury
   • Bmercury only
   • Cwater and oil
   • Dgas only

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   Explanation and discussion

10. Question 10· Temperature and its measurement· JAMB

    Which thermometer is suitable for measuring temperatures as low as −60 °C?

    • Aa clinical thermometer
    • Ba mercury thermometer
    • Can alcohol thermometer
    • Da maximum thermometer

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11. Question 11· Temperature and its measurement· WAEC

    Convert 300 K to degrees Celsius.

    • A−27 °C
    • B573 °C
    • C27 °C
    • D300 °C

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    Explanation and discussion

12. Question 12· Temperature and its measurement· JAMB

    A thermocouple thermometer works because

    • Aan e.m.f. is produced when the junctions of two different metals are at different temperatures
    • Bmercury expands on heating
    • Ca gas expands at constant pressure
    • Dresistance falls with temperature

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13. Question 13· Temperature and its measurement· WAEC

    Mercury is used in thermometers mainly because it

    • Ais cheap
    • Bexpands evenly and does not wet glass
    • Cfreezes at 0 °C
    • Dis a poor conductor of heat

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    Explanation and discussion

14. Question 14· Temperature and its measurement· JAMB

    The fixed points of the Celsius scale are

    • Athe melting point of pure ice and the boiling point of pure water at standard pressure
    • Bbody temperature and room temperature
    • C0 K and 100 K
    • D32 °F and 212 °F

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15. Question 15· Temperature and its measurement· WAEC

    Six's maximum and minimum thermometer records

    • Atemperatures above 1,000 °C
    • Bbody temperature only
    • Cthe boiling point of liquids
    • Dthe highest and lowest temperatures over a period

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16. Question 16· Temperature and its measurement· JAMB

    Mercury is preferred to water as a thermometric liquid mainly because it

    • Ais transparent
    • Bfreezes at 0 °C
    • Cis a poor conductor of heat
    • Dexpands uniformly and does not wet glass

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17. Question 17· Temperature and its measurement· JAMB

    A temperature of 50 °C in kelvin is:

    • A223 K
    • B273 K
    • C323 K
    • D50 K

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    Explanation and discussion

18. Question 18· Temperature and its measurement· WAEC

    The upper fixed point of the Celsius scale is the temperature of

    • Amelting ice
    • Bboiling sea water
    • Csteam from pure water boiling at standard pressure
    • Dthe human body

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19. Question 19· Temperature and its measurement· WAEC

    Convert 27 °C to kelvin.

    • A327 K
    • B246 K
    • C27 K
    • D300 K

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    Explanation and discussion

20. Question 20· Temperature and its measurement· WAEC

    A property used to measure temperature must

    • Abe magnetic
    • Bstay constant
    • Cdepend on mass only
    • Dvary continuously and measurably with temperature

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    Explanation and discussion