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Matter Kinetic Theory Solid Liquid Gas Plasma. Matter. Matter. Anything that has mass and occupies space The materials or “stuff” that all objects and substances in the universe are made of 4 States of Matter = Solid, liquid, gas, and plasma. Matter.
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Matter • Anything that has mass and occupies space • The materials or “stuff” that all objects and substances in the universe are made of • 4 States of Matter = Solid, liquid, gas, and plasma
Matter • Because all matter takes up space (has volume) and contains a certain amount of material (has mass), all matter can be detected and measured
Examples of Matter • Rocks, water, trees, bicycles, lighting, animals, stars, smoke, are all easily seen and observed • Dust mites that live in your furniture and rugs you may need a microscope to view • Air maybe invisible but we can feel it when the wind blows and see it bend the branches of trees (oxygen, nitrogen, hydrogen, CO2)
What is not matter? • Light • Sound • Gravity • Friction
Part (a) What is Matter made up of? Matter is made up of ATOMS! Atoms are little bits too small for us to see. They are so tiny you can’t break them down further.
Matter • Atoms are the building blocks of matter • The elements in our periodic table make up all matter
Kinetic Theory All matter consists of tiny particles that are in constant motion.
Kinetic Theory 1. All matter is composed of small particles (atoms, molecules, or ions). There is an attractive force between them. 2. They are in constant, random motion. The particles may collide with one another or the sides of their container. 3. As the temperature increases the speed of the particles increases. As the temperature decreases the speed of the particles decreases.
SOLIDS • State of matter that has a definite shape and a definite volume. • Particles of solids are tightly packed, vibrating about a fixed position. • Particles are strongly attracted to each other
Part (b) SOLID
LIQUID • A state of matter that has a definite volume but takes the shape of its container • Liquids do not have a definite shape • Particles of liquids are tightly packed, but are far enough apart to slide over one another, allowing it to flow
GAS • A state of matter that has no definite shape and no definite volume; expands to fill the shape of its container • Particles of gases are very far apart and move freely. • Attractive forces are very weak • Contain mostly empty space – because the particles are so far apart • Particles spread throughout a given volume until distributed equally – diffusion
Gas vs. Vapor • Gas – a substance that is naturally in the gaseous state at room temperature • EXAMPLE: Helium • Vapor – the gaseous state of a substance that is a solid or liquid at room temperature • EXAMPLE: Steam
PLASMA • A state of matter that does not have a definite shape or volume and whose particles have broken apart • Consists of + and – charged particles (electrons are knocked off due to collisions) • A plasma is a very good conductor of electricity and is affected by magnetic fields. • Plasma is the most common state of matter in the universe
Some places where plasmas are found… 1.Flames
STATES OF MATTER SOLID LIQUID GAS PLASMA Tightly packed, in a regular pattern Vibrate, but do not move from place to place, definite shape and volume Close together with no regular arrangement. Move about, flow and slide past each other. Definite volume, no definite shape takes shape of its container. Well separated with no regular arrangement. Move freely at high speeds. No definite shape or volume. Easily compressible. Has no definite volume or shape and is composed of electrical charged particles PLC-Unit 1B
STATES OF MATTER LIQUID PLASMA SOLID GAS Tightly packed, in a regular pattern Vibrate, but do not move from place to place Close together with no regular arrangement. Vibrate, move about, and slide past each other Well separated with no regular arrangement. Vibrate and move freely at high speeds Has no definite volume or shape and is composed of electrical charged particles
Phase Change A transition of matter from one state to another.
Some phase changes are more common and easier for us to visualize. For example, you have probably witnessed freezing, melting, and vaporization just by making ice, melting ice, and boiling water.
Condensation often occurs on the outside of cold beverage containers. This is when the humid air changes directly to a liquid on the surface of the container.
SublimationDry ice is actually solid carbon dioxide. When it sits in the open or is placed in water it rapidly changes directly from solid to gas creating a foggy cloud.
DepositionFrozen patterns of ice on your car windshield is an example. Deposition involves a gas changing to a solid. This occurs during winter months when the humid air directly freezes into solid ice.
Ionization and recombination do not occur often around us. These processes involve high energy matter found in lightning and stars changing from one form to another.
Characteristics • . Definite shape and volume • . Particles tightly packed • . Particles vibrate • 4. Particles strongly attracted to each other • Characteristics • . Definite volume • . No definite shape, takes shape of container • . Particles close together but move or flow, by sliding over each other • 4. Attractive forces between particles are weaker States of Matter Examples 1. rock 2. book 3. ice Examples 1. water 2. soda 3. milk Solid Liquid • Characteristics • . No definite shape or volume • . Particles are so far apart they are no longer touching • . Diffusion • 4. Attractive forces between particles is very weak • 5. Easily compressable Plasma • Characteristics • . No definite shape or volume • . Consists of + and – charged particles • . Occurs at high temperatures, particles moving very fast • 4. Most common state of matter in the universe Gas Examples 1. Lighting 2. stars 3. Neon signs Examples 1. Oxygen 2. Nitrogen 3. CO2