Measurement of Temperature and Thermometers
 

Measurement of Temperature and Thermometers problem 30


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


 

main author and content editor: Daniel Owoyomi