Convection
Presentation
•
Science
•
11th Grade
•
Practice Problem
•
Medium
Arlita Daniels
Used 14+ times
FREE Resource
8 Slides • 5 Questions
1
Convection
by Arlita Daniels
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Objectives:
1. Describe the process of Convection
2. Explain how heat is transferred in fluids.
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Convection
- is the way in which heat is transferred through fluids (liquids and gases) by movement of particles themselves
- when particles are heated they expand and get less dense and rise; the cooler the particles get they contact become more dense and sink.
- the constant circulation of hot (warm) particles moving upwards and the cooler particles moving downwards is called CONVECTION Currents.
4
Video on Convection Currents
https://www.youtube.com/embed/0mUU69ParFM
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Hot air rises, Cool air Sinks
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Convection in an Oven
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Convection Currents :sea and land breeze
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9
Multiple Choice
Conduction is the transfer of heat energy by
Molecular contact
Movement through a Vacuum
Electromagnetic Waves
Density differences
10
Multiple Choice
The collision of molecules within a fluid results in the transfer of energy by
Convection
Insulation
Insolation
Conduction
11
Multiple Choice
During which process of energy exchange does cold air displace warmer air?
Absorption
Convection
Radiation
Conduction
12
Multiple Choice
The process by which air flows from one location in the atmosphere to another is called
Conduction
Absorbption
Radiation
Convection
13
Multiple Choice
During which process does heat transfer occur because of density differences?
Conduction
Reflection
Radiation
Convection
Convection
by Arlita Daniels
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