What is temperature literally defined as?
AWhat is measured on a thermometer
BThe total heat energy inside a body
CThe average force between molecules
DThe pressure of a gas at rest
Answer & Solution
Correct answer: A. What is measured on a thermometer
1. Temperature is literally defined as what is measured on a thermometer.
2. Heat is a transfer of energy due to a temperature difference, so heat energy inside a body is a distinct quantity from a temperature reading.
3. Force between molecules and gas pressure are separate mechanical quantities that a thermometer does not read.
4. So the thermometer reading is the correct definition.
_Source: OpenStax Physics (CC BY 4.0), Ch 11 "Thermal Energy, Heat, and Work", section 11.1 Temperature and Thermal Energy_
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