Review: States of Matter, Thermal Energy & Energy Transfer Matter Matter anything that has mass and takes up space Everything around us
Four States of Matter Solids particles vibrate but cant move around fixed shape fixed
volume incompressible Four States of Matter Liquids particles can move around but are still close together variable
fixed shape volume virtually incompressible Four States of Matter Gases particles
can separate and move throughout container variable shape variable volume easily compressed vapor = gaseous state of a substance that is a liquid or solid at room temperature Four States of Matter Plasma particles
collide with enough energy to break into charged particles (+/-) gas-like, variable shape & volume stars, fluorescent light bulbs, TV tubes
Energy & 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 Fast Slow Hot water
Cold water Temperature & 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 (90. oC) Cold water (10. oC) Water (50. oC) Water (50. oC)
Heat Transfer Cup gets cooler while hand gets warmer Heat always flows from warmer to cooler objects. Ice gets warmer while hand gets cooler
Types of Energy Mechanical energy- due to a objects motion Electrical energy- caused by movements of electrons Chemical energy- that is available for release from chemical reactions Quiz Time What
type of energy is shown below? Quiz Time What type of energy is shown below?
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