Review: States of Matter, Thermal Energy & Energy Transfer.
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Transcript of Review: States of Matter, Thermal Energy & Energy Transfer.
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Review: States of Matter, Review: States of Matter, Thermal Energy & Energy Thermal Energy & Energy
TransferTransfer
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MatterMatter
Matter – anything that has mass and takes up space
Everything around us
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Four States of MatterFour States of Matter
Solidsparticles vibrate but can’t move
aroundfixed shape fixed volumeincompressible
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Four States of MatterFour States of Matter
Liquidsparticles can move
around but are still close together
variable shapefixed volumevirtually incompressible
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Four States of MatterFour States of Matter
Gasesparticles can separate and
move throughout containervariable shapevariable volumeeasily compressedvapor = gaseous state of a
substance that is a liquid or solid at room temperature
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Four States of MatterFour States of Matter
Plasmaparticles collide with enough energy
to break into charged particles (+/-)gas-like, variable
shape & volumestars, fluorescent
light bulbs, TV tubes
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Energy & TemperatureEnergy & Temperature
Energy is the ability to do work or produce heat.
Temperature is a measure of the random motions (kinetic energy) of the components of a substance
Hot water Cold water
Fast Slow
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Temperature & HeatTemperature & Heat
Heat transfer is a flow of energy between two objects due to a temperature difference between the objects.o Heat transfer is the way in which thermal energy is
moved from a hot object to a colder object.
Hot water Cold water
(90. oC) (10. oC)
Water Water
(50. oC) (50. oC)
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Heat TransferHeat Transfer
Heat always flows from warmer to cooler objects.
Ice gets warmer while hand gets cooler
Cup gets cooler while hand gets warmer
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Types of EnergyTypes of Energy
Mechanical energy- due to a object’s motion
Electrical energy- caused by movements of electrons
Chemical energy- that is available for release from chemical reactions
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Quiz TimeQuiz Time
What type of energy is shown below?
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Quiz TimeQuiz Time
What type of energy is shown below?