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Chapter 6: Section 2 Temperature

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What is temperature? Any ideas? Think, pair, share (1min)

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2 things you need to know: 1.All things are made of atoms or particles that are too small to see

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2. The particles are always moving in all directions.

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Particle Movement in a Solid, Liquid, Gas Students as particles demo

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Back to Temperature The measure of kinetic energy of the particles in an object Temperature = Kinetic energy of particles

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Measuring Temperature 2 ways: 1.Fahrenheit Scale: At what temp does H 2 O freeze?________ At what temp does H 2 O boil?____

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Measuring Temperature 2. Celcius Scale: At what temp does water freeze?_____ At what temp does water boil?_____

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What is heat? Think about this : What happens to your hand when you grab a cold drink out of the fridge?

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Heat The transfer of energy from one object to another Flows from warmer to cooler objects

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Lets go back to this situation Knowing what you know about heatthink about this: What happens to your hand when you grab a cold drink out of the fridge?

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Midpoint Review How are temperature and kinetic energy related? Heat is transferred how?

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Heat Transfer There are 3 types: Conduction Convection Radiation

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Conduction Transfer of energy by collisions of molecules in a material (2 things touching) Usually happens in solids

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Conduction

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Which spoon would you rather cook with? metal wooden Metal is a good conductor

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Insulators Some things are bad conductors They can be used as insulators Sweaters Blankets Plastics Wood rubber

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Convection Heat is transferred between objects of different temperatures Most common in gases and liquids

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Examples of Convection Birds can float with out flapping wings Heating your home

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Radiation Transfer of heat energy by waves

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Examples of Radiation Heat from fire Microwave heating food

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Heat BrainPop BrainPop

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Quick Review Heat is transferred from ______ things to _______things. What are the 3 types of heat transfer? This is more common in solids____ This is more common in liquid/gas_