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5/26 Drill Energy is the capacity to do work Potential energy (stored) is often converted into...
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5/26 Drill
Energy is the capacity to do work
Potential energy (stored) is often converted into Kinetic energy (motion)
100% PE
50% PE50% KE
100% KEJust before impact
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5/27 Answer in a complete sentence
• What is the PROPULSION system for our maglev car? __________
• What is the SUSPENSION system? ______________________
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5/31 Answer in a complete sentence
Control How does the operator make it stop, go, turn?
Support Outside systems that enable it to function properly
• What is the Control System for your maglev? ___________________________
• What Support System exist for your maglev? ___________________________
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6/2 Title and make a list• List 3 Criteria for your maglev car
project– Must float– Motor must PUSH– Must “Look like a high-speed” vehicle– Must house a 1x1x5 inch piece of cargo– Wires must contact track behind the car
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Exploring Technology - Lesson 7
• Energy is the capacity to do work.–Lifting a weight–Heating a room or material–Pushing a vehicle
• Potential energy (stored) is often converted into Kinetic energy (motion)
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Energy• Energy can be used to
do work using several processes.
• Energy can be potential or kinetic
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• Power is:– the rate at which energy is converted from one
form to another,– transferred from one place to another, or – the rate at which work is done.
We can walk up the steps or run. Either way, the same amount of work is done. Running does it faster and requires more POWER.
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• Much of the energy used in our environment is not used efficiently.–Automobile engines < 20% efficient–Hot water heater–Electrical power plants
Conservation is the act of making better use of energy
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Power Systems
• Automobile
• Airliner
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Power Systems
• Locomotive
• Grain Mill
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10/20 Add to yesterday’s drill• Transportation vehicles are made up of subsystems
that must function together for a system to work effectively.– Structural– Propulsion– Suspension -What holds it up in its environment?– Guidance - What helps the operator know where to go?– Control-How does the operator make it stop, go, turn?– Support
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Transportation SubsystemsSubsystem Description Automobile Airliner
Propulsion What makes it “go”?
Structural Functional shape, gives it strength, aerodynamics
Suspension What holds it up in its environment?
Guidance What helps the operator know where to go?
Control How does the operator make it stop, go, turn?
Support Outside systems that enable it to function properly
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6/3 Copy and give an example
• “Transporting people and goods involves a combination of individuals and vehicles.”– Pick a system and give an example that supports
this statement.
Space ShuttleAmtrakAirlineWarehouse
Trucks, conveyer belts, airplanes, trains,Forklifts, wheeled carts
Delivery people, truck drivers, truck loaders,Service desk staff, managers,
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6/7 Copy and give an example
• Modeling is the process of developing a prototype.
Modeling
Modifying Evaluating
Testing
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6/8 Restate and give an example
• How did you test, evaluate, and modify your maglev car?
Modeling
Modifying Evaluating
Testing
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3/21 Sketch and Label
• Sketch 3 shapes you might consider for you maglev car base.
• REMEMBER – Magnets must align with the original edge of the base
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10/22 Answer in sentences• Identify a change you made to your maglev car
based on testing.• Describe the result of the change.
– Ex. “We removed and flipped over our front magnets because the stuck to the track. The car floated well as a result of the change”
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5/24 What do these systems have in common?
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5/26 Drill
_____ is the _______ to do ______
_________ energy (stored) is often _________ into _______energy (motion)
100% PE
50% PE50% KE
100% KEJust before impact
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6/2 Title and make a list• List 3 Criteria for your maglev car
project (rules)– Must float– _____________________________– _____________________________– _____________________________– _____________________________
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6/6 Copy and give an example
• ________________ is the process of developing a ________________.
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6/2 Copy and give an example• “Transporting _________ and __________
involves a combination of individuals and _____________.”
Airline-Vehicles_______________________________________-People__________________________
Trucks, conveyer belts, airplanes, trains,Forklifts, wheeled carts
Delivery people, truck drivers, truck loaders,Service desk staff, managers,