Worksheet: Temperature Measurements

In this worksheet, we will practice describing the mechanisms of common temperature gauges and identifying sources of error in temperature measurements.

Q1:

Analog thermometers often rely on the thermal expansion of a liquid to infer the temperature. Which of the following properties would make a liquid a bad choice for use in a thermometer?

  • ALow reactivity
  • BNonlinear thermal expansion
  • CLow vapor pressure
  • DStrongly colored
  • ELow toxicity

Q2:

Two containers are initially separated. One contains hot particles, the other contains cold particles. What happens to their temperature when the containers are brought in contact with one another?

  • ATheir temperatures equalize
  • BNothing; their temperatures remain the same
  • CThe hot particles get hotter and the cold particles get colder

Q3:

A bimetallic thermometer is shown in the figure.

What feature of the bimetallic strip allows it to change shape based on the temperature?

  • AThe thermal expansion coefficients of the two metals are exactly the same.
  • BThe two metals have different thermal expansion coefficients (greater for brass than steel).
  • CCooling makes brass crystalize, contracting more than the steel which does not crystalize.
  • DThe two metals have different thermal expansion coefficients (greater for steel than brass).
  • EHeating builds up a charge between the two metals, which makes them repel one another.

Q4:

If the weather outside is cold but you do not have a thermometer, which of the following would prove that it is 0C or colder?

  • AWater would condense from the air onto a cold glass.
  • BA glass of water would freeze.
  • CIt would be snowing.
  • DIce would float rather than sink.

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