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Temperature
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Recap
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The picture below shows a possible experimental set up to Calibrate a Celsius Thermometer
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Learning Objectives- Calculating temperature using change in thermometric properties

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liquid-in-glass thermometer
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Length of liquid column varies continuously and linearly with termperature
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calculate temperature based on change in length
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Draw line representing change of length against change of temperature.Mark out ice point (0℃) and steam point (100℃) on graph.

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Label corresponding coordinates as l_0 and l_100.

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Mark an arbitrary length between the two fixed points as l_θ, tracing using a dotted line to get the temperature θ

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what you should have now.
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consider gradient of graph

- from ice to steam point

- from ice to unknown temperature

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TRY THIS.3. In an unmarked mercury thermometer, the lengths of the mercury thread l_0 and l_100 are 5.0cm and 25.0cm respectively.

What is the temperature θ when l_θ is

(a) 14.0 cm and

(b) 3cm

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Other thermometric properties

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Other thermometric properties
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resistance thermometer
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resistance thermometerResistance R of a fixed length of wire varies continuously with temperature over a range of values

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Thermocouple
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WORKING PRINCIPLECompare voltage reading with calibrated values for ice and steam points.

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QUIZ!Worksheet 8

MCQ Qn 2

Section B Qn 1-2

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CONCLUSIONGo through your checklist, and answer this slide's question