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6 marksDesign and Use of Thermometers

CAPE Physics Unit 1 · 2012 · Paper 2 · Question 6(a)(i)

Describe how a physical property of a substance which varies with temperature may be used for the measurement of temperature on an empirical centigrade scale.

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Other parts of this question

  1. 6(a)(ii)Explain how the absolute thermodynamic scale of temperature differs from that described above.[1 mark]
  2. 6(a)(iii)State ONE reason why mercury is still often used in thermometers.[1 mark]
  3. 6(b)(i)Determine the new temperature of the bath, as measured using the resistance thermometer.[3 marks]
  4. 6(b)(ii)Suggest ONE reason for the difference between this reading and the value calculated above in b (i).[1 mark]
  5. 6(c)(i)Calculate the power developed by the heater.[6 marks]
  6. 6(c)(ii)When a steady state is finally reached, what is the reading on the outlet thermometer?[1 mark]
  7. 6(c)(iii)State ONE reason why it is NOT necessary to take into account the heat capacity of the apparatus itself.[1 mark]

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