Fluids: Chapter 9 At ordinary temperature, matter exists in one of three states Solid -has a shape and forms a surface Liquid -has no shape but forms a surface Gas-has no shape and forms no surface What do we mean by fluids"? F| uids are“ substances that flow”..."“ substances that take the shape of the container Atoms and molecules are free to move No long range correlation between positions Physics 121: Lecture 20, Pg 2Physics 121: Lecture 20, Pg 2 Fluids : Chapter 9 At ordinary temperature, matter exists in one of three states Solid - has a shape and forms a surface Liquid - has no shape but forms a surface Gas - has no shape and forms no surface What do we mean by “fluids”? Fluids are “substances that flow”…. “substances that take the shape of the container” Atoms and molecules are free to move. No long range correlation between positions