# Explain the definition of temperature

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## Explain the meaning of temperature

Temperature is the degree or degree of hotness or coldness in an object. The higher the temperature of an object, the hotter it is.

### The discussion explains the definition of temperature

Temperature is a fundamental quantity. The unit used is the Kelvin. For measure temperature requires a tool that we often call a thermometer. In general, the temperature that we measure with a thermometer uses a thermometer substance liquid containing mercury or alcohol, it would be nice to use liquid mercury because mercury wets the walls of the thermometer, as a good conductor of heat and so on.

In making a thermometer, we must first determine the upper fixed point and the lower fixed point. In a fixed point the thermometer itself is measured at 1 atm pressure. Between the upper and lower fixed points, a temperature scale is made.

in determining the upper permanent point using a reference based on the temperature when water boils (boiling point), while determining the lower fixed point using a reference based on the temperature when the ice melts. for setting a permanent point on several thermometers, namely as follows:

1. Celsius thermometer

for the Celsius thermometer the lower permanent point is 0°C, while the upper fixed point is 100°C. make the scale between the 2 fixed points is 100.

2.. Reamur thermometer

for the thermometer the lower permanent point is 0, while the upper permanent point is 80. for the scale between the two fixed points is 80.

3. Fahrenheit thermometer

for a fahrenheit thermometer the lower permanent point is 32, while the upper permanent point is 212. for the scale between the 2 permanent points it means 180.

4. Kelvin thermometer

for the kelvin thermometer the lower permanent point is 0. Kelvin determines the temperature of ice melting with the number 273 and the temperature of boiling water with the number 373. for the scale between the 2 fixed points is 100.

### Question Details

Class: 7

Course: Physics

Chapter: temperature, expansion and heat

Keywords: thermometer, definition of temperature

This is the discussion that we have compiled from various sources by the Katalistiwa team. May be useful.