Physics - Heat

Front

What is temperature?

Back

Temperature is a measure of the mean kinetic energy possessed by the particles that form an object.

Front

What device is used to measure temperature?

Back

The device used to measure temperature is known as a thermometer.

Front

Who invented the first thermometer?

Back

The first thermometer was invented by Galileo Galilei around 1600 A.D.

Front

What are the two types of thermometers focused on in this chapter?

Back

The two types of thermometers focused on are the glass-mercury thermometer and the glass-alcohol thermometer.

Front

Why is mercury used in thermometers?

Back

Mercury is used because it has a uniform expansion over a broad range of temperatures, is a good thermal conductor, and remains liquid over a wide temperature range.

Front

What is the melting point of ice in Celsius?

Back

The melting point of ice is 0°C.

Front

What is the boiling point of water in Celsius?

Back

The boiling point of water is 100°C.

Front

What are the three temperature scales widely used?

Back

The three temperature scales widely used are Celsius, Fahrenheit, and Kelvin.

Front

What is the relationship between Celsius and Kelvin?

Back

To convert Celsius to Kelvin, add 273. To convert Kelvin to Celsius, subtract 273.

Front

What is heat?

Back

Heat is the energy transferred from one object to another due to a temperature difference.