Topic: Transfer of Energy 3 rd

What’s the difference between kinetic and potential energy? Give a real-life example of each.

Examples Include: ___ ___ ___ _____

Examples Include: ___ ___ ___

Energy travels… High Energy___ Energy will stop transferring when… High Energy Energy Becomes Equal ___

Heat Energy Measures how fast molecules are moving Faster particles = ___ Slower particles = ___

All matter radiates energy, unless it is at ___.

Absolute Zero ____

Temperature and Energy: How Cold is Cold?

Deep outer space = 3°K Coldest temperature in a laboratory = 0.000,000,001 A few billionths of a degree above absolute zero Now that’s cold!

Methods of Energy Transfer 1) __ 2) __ 3) __

Radiation ___ Ex: Sun’s energy reaching the Earth

Conduction

___ *___ Conduction

Convection ___ Ex: ___

Conduction and Convection physics/conduction/conduction.htmlhttp:// physics/conduction/conduction.html

Open System Insulated Cups Aluminum Bar How is energy transferred? Is energy lost? Cold WaterWarm Water

Closed System Insulated Cups Aluminum BarHow is energy transferred? Is energy lost?Large Insulated Container

Summary Open System –- Closed System –-

Name that Heat Transfer Method

___

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Final Question: What are the three methods of heat transfer in the following picture? 1 2 3