Temperature Depends on Particle Movement

4.1 Overview


Kinetic theory of matter- states that all of the particles that make up matter are constantly in motion.

This picture shows the difference between the motion of particles

Temperature- is a measure of the average kinetic energy of all the particles in an object.

The higher the temperature the faster the particles move, and the colder the temperature the slower they move.

Degrees- units that temperature is measured in.

The degrees are equally spaced units between two point

Thermometer- is a tool that measures temperature through the regular variation of some physical property of the material inside.

There is a big difference between the two. It is very important not to mix them up.

The Movement

If all of these have something in common it is that they are always moving.

Thermal Expansion

thermal expansion is the property that makes liquid filled thermometers work.
thermal expansion effects many substances.
thermal expansion occurs in solids because the particles vibrate more at higher temperatures.

Thermal energy

thermal energy is the total amount of energy from the movement of particles in matter.

Kinetic energy

kinetic energy is the motion of energy.
It depends on both the objects mass and speed.
if one of the two increase then so does the energy.

Comment Stream

2 years ago

The paragraph about Celsius is wrong I will put in the right one

2 years ago
2 years ago

This is the right one