Science Unit 3: Lesson 1- Particles in Motion

Front

The study of heat..

Back

thermodynamics

Front

An increase in a material's volume when the temperature is increased.

Back

thermal expansion

Front

The movement of substances from an area of higher concentration to an area of lower concentration.

Back

diffusion

Front

Energy due to motion..

Back

kinetic energy

Front

Movement in all directions and at different speeds..

Back

random motion

Front

The measure of the average kinetic energy of the particles in a material..

Back

temperature

Front

A decrease in a material's volume when the temperature is decreased.

Back

thermal contraction

Front

The process in which a solid changes directly to a gas.

Back

sublimation

Front

How do particles move as they change states from a solid -- to a liquid --to a gas?

Back

particles vibrate and begin to move faster and farther apart

Front

How do particles move as they change states from a gas to a liquid to a solid?

Back

particles shake and they begin to slow down and move closer together