Review: States of Matter, Review: States of Matter, Thermal Energy & Energy Thermal Energy & Energy

TransferTransfer

MatterMatter

Matter – anything that has mass and takes up space

Everything around us

Four States of MatterFour States of Matter

Solidsparticles vibrate but can’t move

aroundfixed shape fixed volumeincompressible

Four States of MatterFour States of Matter

Liquidsparticles can move

around but are still close together

variable shapefixed volumevirtually incompressible

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

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

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

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)

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

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

Quiz TimeQuiz Time

What type of energy is shown below?

Quiz TimeQuiz Time

What type of energy is shown below?