Question
The diagram shows a simple type of thermometer.
The roller rests on a horizontal surface and the steel bar rests on top of the roller. When the temperature changes, the pointer rotates.
Which physical property is being used to measure temperature?
the length of the pointer
the length of the roller
the length of the steel bar
the thickness of the roller
Answer/Explanation
Ans: C
Question
A piece of melting ice at 0 0C and a beaker of boiling water are both in a laboratory. The laboratory is at 20 0C.
What is happening to the temperature of the melting ice and what is happening to the temperature of the boiling water?
| temperature of melting ice | temperature of boiling water |
A | constant | constant |
B | constant | increasing |
C | increasing | constant |
D | increasing | increasing |
Answer/Explanation
Ans: A
Question
All thermometers require a physical property that changes with temperature.
Which property would not be suitable for use in a thermometer?
pressure
volume
electrical resistance
mass
Answer/Explanation
Ans: D
Question
Which points are the fixed points of the liquid-in-glass thermometer shown?
the beginning and end points of the column of liquid
the points marked –10
and 110
the points marked 0
the top and bottom points of the thermometer bulb
Answer/Explanation
Ans: C
Question
When a thermometer is calibrated, the fixed points are marked.
What are fixed points?
all the marks on the temperature scale which cannot be removed
all the marks of the temperature scale
the lowest and highest temperatures shown on the thermometer
two temperatures of known value which are easily reproduced
Answer/Explanation
Ans: D