Material Y is not suitable for making a resistance thermometer because its resistance ___ and then ___ as the temperature increases.
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decreases, increases
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Material Y is not suitable for making a resistance thermometer because its resistance ___ and then ___ as the temperature increases.
decreases, increases
If the length of the mercury column is 16 cm, the temperature is ___ °C.
40
When thermometer X shows a length of 25 cm, the temperature of the object is ___ °C.
75
When thermometer Y shows a length of 25 cm, the object's temperature would be ___ than the value found in thermometer X.
lower
The calibration graph of a mercury-in-glass thermometer shows a linear relationship between the length of the mercury column and ___.
temperature
A thermometer makes use of a ___ property in measuring temperature.
temperature-dependent
The relationship between the length of the liquid column L and temperature T is assumed to vary ___ with temperature.
linearly
The length of the liquid column in a thermometer varies ___ with the temperature.
linearly
In the calibration of a liquid-in-glass thermometer, the length of the liquid column L varies with temperature T, where L is ___ cm at 0 °C and ___ cm at 100 °C.
5.0, 30.0
When the thermometer is put into warm water, if L becomes 21.0 cm, the temperature of the warm water is ___ °C.
unknown
In a resistance thermometer, the resistance R varies ___ with temperature T.
linearly
When the resistance thermometer is in pure melting ice, the resistance is ___ Ω.
100
If the thermometer reads 48 °C according to the calibration graph, the actual temperature is ___ °C according to the dotted line graph.
42
When x = 20, T can be ___ or ___.
5, 15
We do not use our body temperature as a fixed point on the Celsius temperature scale because it is not ___ and varies from person to person.
stable
The ice point and steam point are chosen to be the fixed points on the Celsius temperature scale because they are ___ and easily reproducible.
stable
Material X is not suitable for making a resistance thermometer because its resistance is ___ as the temperature increases.
constant
The upper fixed point for the Celsius scale is the temperature of steam over pure ___ water at normal atmospheric pressure.
boiling
The range between the lower fixed point and the upper fixed point on the Celsius scale is divided into ___ equal divisions.
100
Each division on the Celsius temperature scale is equal to ___ °C.
1
To calibrate an unmarked thermometer, first place it in a beaker of pure melting ice and mark the liquid level at ___.
0 °C
After marking the liquid level in boiling water, the length between the two markings is divided into ___ equal divisions.
100
The thermometer is calibrated such that each division represents ___ °C.
1
The average normal body temperature is ___ °C.
37
Infra-red thermometers are often used for measuring ___ temperature.
body
Liquid-in-glass thermometers and temperature sensors are commonly used for ___ experiments.
laboratory
To accurately compare the 'hotness' of objects, we need a ___ to measure temperature.
thermometer
The volume of water is an example of ___-dependent properties as shown by the results in the activity.
temperature
A liquid-in-glass thermometer consists of a bulb connected to a ___ glass tube.
narrow
A liquid-in-glass thermometer is more sensitive if the length of the liquid column increases more for the same ___ rise.
temperature
Thermometers with a larger bulb, narrower glass tube, and containing liquid that expands more when temperature increases have ___ sensitivity.
higher
Alcohol-in-glass thermometers are suitable for measuring ___ temperatures.
low
Mercury-in-glass thermometers are suitable for measuring ___ temperatures.
high
Alcohol-in-glass thermometers have a ___ response to temperature changes because alcohol is a poor conductor of heat.
slow
Mercury-in-glass thermometers have a ___ response to temperature changes because mercury is a good conductor of heat.
quick
Alcohol is ___, while mercury is poisonous.
non-poisonous
The liquid-in-glass thermometer measures temperature using the ___ of liquid.
volume
The infra-red thermometer measures temperature based on the ___ emitted by the object.
intensity of infra-red radiation
The thermistor thermometer relies on the ___ of thermistor to measure temperature.
electrical resistance
The resistance thermometer measures temperature through the ___ of metal.
electrical resistance
A thermometer with a smaller diameter glass tube can have ___ sensitivity.
higher
A larger bulb size in a thermometer can lead to ___ sensitivity.
higher
The Celsius temperature scale is named after the Swedish scientist ___ ___.
Anders Celsius
The lower fixed point for the Celsius scale is the temperature of pure ___ ice at normal atmospheric pressure.
melting
The temperature in degree Celsius (°C) can be ___ and is a commonly used unit of temperature.
negative
In the calibration graph of a liquid-in-glass thermometer, the y-axis is labeled ___ and the x-axis is labeled T/°C.
L
When the liquid column length L is 13.0 cm, the temperature T of the warm water is found to be ___.
40 °C