Exploring Energy Energy Conversion - TeachEngineering...Energy Conversion Exploring Energy What Did...
Transcript of Exploring Energy Energy Conversion - TeachEngineering...Energy Conversion Exploring Energy What Did...
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Energy ConversionExploring Energy
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What Did We Learn Last Time ?
Motion energy is called ___________________ energy
It depends on the ________ and _______ of an object.
Stored energy is called ___________________ energy.
Energy can be stored in many forms, such as:
kinetic
mass speed
potential
gravitational energy
chemical energy
heat/thermal energy
elastic energy
Concept Review:
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Energy Transfer
Energy can be transferred from one form to another, from one object to another, or even from one place to another.
potential kinetic
kinetic potential
potential potential
kinetic kinetic
Energy can be transferred in many ways.
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Force
Energy can be transferred from one object
to another by a force (by the objects
pushing or pulling on each other).
A force can also transfer energy from one
form to another.
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Electricity
Electricity is the flow of electric charge
through a conductor. Energy can be
transferred from one place to another and
from one form to another by electricity.
power plant
electricity towers
houses
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Energy Can Also Be
Transferred in Other Ways
light
sound
heat
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Energy transfer is very useful…
Energy Transfer
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Energy transfer is very useful… but the transfer is never perfect.
Some energy always goes places we don’t want it to go.
Energy Transfer
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Energy Transfers Are Not Perfect
When energy is transferred, some energy is usually “lost” as __________ , ___________ or __________.heat
Remember:
sound light
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power plant
electricity towers
houses
Energy Transfer Example 1:
Light Bulb
60-watt light bulb
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“Lost” Light Bulb Energy
Source: Woodbank Communications Ltd.
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Energy Transfer Example 2:
Car chemical kinetic
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“Lost” Car Energy
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Write about something you saw today that would not be possible without energy transfer.
Assignment
Include your observations about:
• What was the original source of energy?
• What was the final use of the energy?
• How was energy transferred?
• How was energy “lost”?