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Particle nature of matter
Fichas del conjunto (26)
- 1Particle nature of matterOur world is made up of materials of all sorts
Matter is anything that has mass and takes up space
Matter is all things that we can see, feel and smell in our daily living
Matter is the stuff all around us
Chemistry is the study of matter - 2Properties of matterMatter is made up of tiny particles(atoms& molecules)
Particles of matter are in constant motion each substance has unique particles that are different from other substances
Temperature affects the speed of the particles. The higher the temperature, the faster the speed of the particles - 3Continued...There are empty spaces between the particles of matter that are very small compared to themselves
- 4The movement of particlesBrownish motion - the random movement of particles
- 5Energy is...Energy is available power. It is the ability to do work
- 6Phases of matter3 phases - solid, liquid, gas
Phase of a substance depends on how much energy that substance "contains" - 7HeatHeat is a type of energy, so the amount of energy a substance contains can be changed by heating or cooling it ( by adding or removing heat)
- 8Table to show comparison of matter
- 9Movement of particlesMovement of particles depend on temperature and how much energy they have
- 10CompressibilityCompressibility of particles depend on how closely packed the molecules are and the phase it is in
- 11SoildIt holds its shape
Fixed volume
Particles are close together
Vibrate in fixed position - 12LiquidShape of container
Free surface
Fixed volume
Particles are fairly close - 13GasShape of container
Volume of container
Particles are far apart - 14MeltingIt is the process by which a substance changes from the Soild phase to a liquid phase
- 15BoilingA phase transition from the liquid state to the gas state, usually occurring when a liquid is heated to its boiling point
- 16EvaporationTo change from a liquid or solid state into vapor gas
- 17CondensationThe process by which a gas cools and becomes a liquid
- 18Freezing ( solidigication)To become hardened into ice or into a solid body; to change from the Soild state by loss of heat
- 19Temperature lineA temperature line is a method of showing the changes in phase of a substance as energy changes.
- 20An example of a temperature line
- 21An explanation of the exampleA - melting point if energy is added , freezing point if energy is being taken away - melting and freezing point is the same thing
- 22A diagram showing air pressure's in influence on boiling and freezing point
- 23Energy involved in phase changesSolid particles with little energy - ➡️(Add energy) liquid particles with more energy
Liquid particles with more energy ➡️ ( take away energy) solid particles with little energy - 24More....Liquid particles with more energy ( add energy) ➡️ gas particles with lots of energy
Gas particles with lots of energy ( take away energy) ➡️ liquid particles with less energy - 25SweatingIt cools us down and keeps our body temperature constant. Sweat is released from sweat glands on our skin and exists as a liquid. When this sweat heats up, either from our body temperature or from the sun, it evaporates, changing from a liquid to gas. Heat energy is added. This removal of heat energy from our bodies helps to cool us down
- 26Wine coolerThe wine cooler is wet and therefore is covered in liquid water.
The wine bottle is warm
Heat energy from the wine heats up the water on the surface of the cooler and it evaporates
The liquid water gains energy while the wine loses energy and it cools.
Información
- Descripción
- The notes were taken from the notes I got in my natural science class.
- Creado por
- Hlengiwe Zondi
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