Health Physics: Thermometers

what does a thermometer require?

some measurable physical property that changes with temperature
what property changes in a liquid-in-glass thermometer?

volume of liquid
what property changes in a digital thermometer?

resistance of thermistor
what property changes in a crystal strip thermometer?

crystals have different melting points
describe a liquid-in-glass thermometer.
- the liquid inside the thermometer expands when it is heated
- its volume increases and it rises up the tube
- the liquid expands more than the glass
describe a clinical thermometer.
- measures over a smaller range so it can be more accurate
- keeps highest reading for ease of use
- glass tube shaped like a lens to magnify the thin thread of liquid
what is the normal body temperature?

37 degrees
what is the body temperature if the person has a fever?

above 38 degrees
what is the body temperature if the person has hypothermia?

below 34 degrees

Author

crobertsonx

86618

Card Set

Health Physics: Thermometers

Description

Health Physics: Section 1- Thermometers

Updated

5/18/2011, 9:28:44 PM

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