Heat Transfer ProcessesHeat Transfer Methods Slide Share Resources www.slideshare.net/guest451a35/heat-transfer-presentation Intro to Heat Transfer Methods: www.youtube.com/watch?v=HpCvWuvCUoA. (Moo-Moo Math 3:00) www.youtube.com/watch?v=Eizsm5V8c_c&t=6s (GCSE 5:44) www.youtube.com/watch?v=FTSBtx5jhaY ( Learn in 200 Seconds: 2:33) www.youtube.com/watch?v=zvQZtpZnRRE. (Physics Animation 4:33) www.youtube.com/watch?v=kNZi12OV9Xc (Mr. Sanmartanno 4:36) www.youtube.com/watch?v=ThpUiZ4QBHE. (Mr.Kennedy: 8:12) Terms to Know: Fluid : A substance that has the ability to flow. (liquids and gases) Vacuum: A space with no particles or air. Truly Empty!! CONDUCTION. 1 : THE TRANSFER OF HEAT THROUGH MATTER BY TRANSFER OF KINETIC ENERGY FROM PARTICLE TO PARTICLE THROUGH CONTACT . May move from object to object. Note: To have conduction there must be: 1. Contact between particles/objects 2. Substances/objects of different temperatures CONDUCTION VIDEOS: (THE VIDEOS ARE FOR THE CANVAS ASSIGNMENT) WWW.YOUTUBE.COM/WATCH?V=W_IBPRNZ6HO WWW.YOUTUBE.COM/WATCH?V=9JOLYFAYEE8 DISCUSSION- WHAT HAPPENS WITH THE PARTICLES WHEN CONDUCTION HAPPENS? WHAT DID YOU NOTICE? WHAT MUST HAPPEN IN ORDER FOR HEAT TO BE TRANSFERED? CONDUCTION: LET’S COME UP WITH A CLASS CONSENSUS ON WHAT THIS TERM MEANS, AND ADD THE DEFINITION TO YOUR VIRTUAL NOTEBOOKS. CAN YOU THINK OF EXAMPLES OF CONDUCTION? WRITE THESE IN YOUR VIRTUAL NOTEBOOKS AND THEN DISCUSS AS A CLASS. CONDUCTION VIDEOs FOR YOU!! WWW.YOUTUBE.COM/WATCH?V=9JOLYFAYEE8 (2:50 Metal Rods) MORE CONDUCTION VIDEOS WWW.YOUTUBE.COM/WATCH?V=FJTD-GPTXU4 (6:23 Eureka) WWW.YOUTUBE.COM/WATCH?V=VFZZWICQLY8 (Demo. Ice Melt) WWW.YOUTUBE.COM/WATCH?V=W_IBPRNZ6HO (ELearn: Nails 2:00 _______________________________________________________________________________________________________________ www.youtube.com/watch?v=6byqNP3Tif0 (CER Metal Rods Cambridge Exp) CONDUCTORS AND INSULATORS PICKLE VIDEO: 4:00 www.youtube.com/watch?v=nFFFKFAIgrg CONDUCTION IS USUALLY FASTER IN CERTAIN SOLIDS AND LIQUIDS THAN IN GASES. MATERIALS THAT ARE GOOD CONDUCTORS OF THERMAL ENERGY ARE CALLED THERMAL CONDUCTORS. INSULATORS: SUBSTANCES/MATERIALS WHICH DO NOT ALLOW HEAT TO TRANSFER THROUGH THEM EASILY. METALS ARE ESPECIALLY GOOD THERMAL CONDUCTORS BECAUSE THEY HAVE FREELY MOVING ELECTRONS THAT CAN TRANSFER THERMAL ENERGY QUICKLY AND EASILY. MATERIALS THAT ARE POOR THERMAL CONDUCTORS ARE CALLED THERMAL INSULATORS. _________________________________________________________ ARTICLE FOR YOU!! WWW.CK12.ORG/PHYSICS/THERMAL-CONDUCTORS-AND-INSULATORS/LESSON/THERMAL-CONDUCTORS-AND-INSULATORS-MS-PS/?REFERRER=CONCEPT_DETAILS _____________________________________________________ CONVECTION: THE METHOD OF HEAT TRANSFER IN A FLUID CAUSED BY CIRCULATION. DIFFERENCES IN DENSITY CAUSE THIS. Fluid: A substance that has the ability to flow. (Gases and liquids) THIS CAUSES WIND. WARM AIR RISES (LESS DENSE) THEN COOLS (MORE DENSE) AND SINKS. CONVECTION CURRENT: CIRCULAR MOTION OF A FLUID CAUSED BY CONVECTION. VIDEOS ON CONVECTION: www.youtube.com/watch?v=B8H06ZA2xmo. (Convection Chamber) www.youtube.com/watch?v=Ht1NmwlWaCo. STEM Real World www.youtube.com/watch?v=VxGIiOTuAIs(Expert Math) WWW.YOUTUBE.COM/WATCH?V=FXF2U2GZU7K (TEACHERS' PET) www.youtube.com/watch?v=B8H06ZA2xmo. (Convection chamber) WWW.YOUTUBE.COM/WATCH?V=0MUU69PARFM (CONVECTION DEMO.) _____________________________________________________________________________________________________________ Radiation: The transfer of heat that takes place in the form of rays. Emission of energy in the form of waves. Rays travel through empty space. The only heat transfer that CAN happen in a vacuum. Examples: Heating Food in a Microwave Ultraviolet rays from the sun warming the Earth. Warming your hands above a fire. www.youtube.com/watch?v=OYW7lR-XuJA. (Radiation: 1:30) www.youtube.com/watch?v=95ofx9p7IyI (Moo Moo Math 2:00) www.youtube.com/watch?v=0STGBw57Z7A (Heat Transfer: All 7:16)
Density
FORMULA= D= M / V (Density. Mass. Volume) DENSITY: AMOUNT OF MASS IN AN OBJECT PER UNIT OF VOLUME FACTS: The density of H2O is 1.0 g/mL. Anything less than this density will float. Anything greater will sink. The greater the difference in density, the easier the object will float or sink. When floating an object..."You can predict the density of an object by how much of it is below the surface of water" MASS : THE AMOUNT OF MATTER IN AN OBJECT/SUBSTANCE. Measured in grams (g). VOLUME = THE AMOUNT OF SPACE AN OBJECT TAKES UP. Measured in (cm3) for solids. (mL) for liquids KEY INFORMATION: TO GET THE VOLUME OF A CUBE…L X W X H (BLOCK) VOLUME: MEASURED IN: ML (LIQUIDS) CM3 (SOLID) DENSITY = Units of Measurement. g/CM3 (SOLID) g/ML (LIQUID) (Gas) CIRCLE FORMULA. MASS DENSITY. VOLUME www.youtube.com/watch?v=_mwC2-cqGFU. (What is Density ??). #1 WWW.YOUTUBE.COM/WATCH?V=ZLKPZZW29B0 (5 Facts: Diet Soda vs Rg. Soda). 3:45. #2 www.youtube.com/watch?v=1HJkEVOZbTM. (What is density? Density for Kids). #3 www.youtube.com/watch?v=vSXTBnnx4OA (Why does oil float in water? ) #4 www.youtube.com/watch?v=VD-3MMzWCrA&t=2s. (Density Demos. Middle School). #5 www.youtube.com/watch?v=GzdRGOuNIFg. (Bozeman). Video #6 |