X and y are liquid-in-glass thermometers. The scale of each thermometer starts at 0 °C. X has a large range, good linearity and high sensitivity. Y has a small range, poor linearity and low sensitivity. Explain what is meant by (I)


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Thermal Properties & Temperature 2 QP

 
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2
(a) 
State two examples of physical properties that vary with temperature and that may be used 
for the measurement of temperature.
1. ...............................................................................................................................................
2. ...............................................................................................................................................
[2]
(b)
When first manufactured, a liquid-in-glass thermometer has no scale markings.
(i)
Describe the procedure needed to determine
1.
the position on the thermometer of the lower fixed point,
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
2.
the position on the thermometer of the upper fixed point.
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
[3]
(ii)
Explain why
1.
the graduations marked on the thermometer between the fixed points are spaced
equally,
....................................................................................................................................
................................................................................................................................[1]
2.
the expansion of the glass of the thermometer is ignored.
....................................................................................................................................
................................................................................................................................[1]
[Total: 7]


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