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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3 (a) 
Fig. 1.1 shows a liquid-in-glass thermometer.
–10
0
10
20
30
40
50
60
70
80
9
0
100
110 °C
Fig. 1.1
(i)
In the process of making the thermometer, the scale divisions were spaced equally.
What assumption was made about the liquid?
...........................................................................................................................................
...................................................................................................................................... [1]
(ii)
Suggest 
two 
changes to the thermometer that would require the spacing of the scale
divisions to be larger.
1. .......................................................................................................................................
2. .......................................................................................................................................
[2]
(iii)
As a result of the changes in 
(ii)
, what other change is needed to enable the thermometer
to be used for the same temperature range?
...................................................................................................................................... [1]
(b)
The expansion of a liquid is an example of a physical property that may be used to measure
temperature.
State 
two
other physical properties that may also be used to measure temperature.
1. the ................................................................. of .................................................................
2. the ................................................................. of .................................................................
[2]
[Total: 6]


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