JAMB Physics questions: Temperature and its measurement

12 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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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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3. Question 3· Temperature and its measurement· JAMB

   Convert 77 °F to the Celsius scale.

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

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4. Question 4· 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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5. Question 5· 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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6. Question 6· 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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7. Question 7· 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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8. Question 8· 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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9. Question 9· 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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10. Question 10· 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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11. Question 11· 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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12. Question 12· Temperature and its measurement· JAMB

    Express −73 °C on the Kelvin scale.

    • A346 K
    • B200 K
    • C−200 K
    • D73 K

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