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Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Éco-Sagesse dès demain
Wise-up now to our eco-future
Weichen stellen für eine verantwortungs- bewusste, ökologische Energienutzung
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 1 in Ayr
Emphasis on power generation
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 1 in Ayr
Whitelee Windfarm
Wind power
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 1 in Ayr
Cruachan Power Station
Hydroelectric power
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 1 in Ayr
Longannet Power Station
Coal power
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 1 in Ayr
Engineering design day
Wave power
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 1 in Ayr
Ceilith
Human power
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 2
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 2
Emphasis on
•Energy in science•Mobility in the 21. century
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
What is energy?
Energy is the ability to work.
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
What is work?
Everyday language: Expenditure of muscular effort
Science:an applied force moves an object through a distance.
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
What is work?
Examples
•Lifting work•Accelerating work•Frictional work•Streching work
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Work W is done, when a force F moves a body a distance d in the direction of the movement.
W = F · d [ W ] = Nm = J (Joule)
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Lifting work
Lifting Work stored as potential energy
Accelerating workPotential energy transformed to kinetic energy
kinetic energy transformed to potential energy
Accelerating work stored as kinetic energy
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 2
Work ist stored as Energy.
Lifting Work potential Energy
Accelarating Work kinetic Energy
Frictional Work Heat Energy
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Three principles of energy
Energy can be transfered from one body to another.
1) Transfer of energy
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Three principles of energy
Any form of energy can be transformed into another form.
2) Transformation of energy
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Three principles of energy
Energy can not be destroyed or created.
3) Conservation of energy
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
3) Conservation of energy
Potential energy
Kinetic energy
Thermal energy
Light energy } lost
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Forms of energy
•Thermal energy•Thermal energy
Mechanical energy
Thermal (Heat) energy
Light energyElectric energy
Magnetic energy
Nuclear energy
Chemical energy
Energy of sound
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Cruachan Power Station
Energy balance
Electric energy
Potential energy
Kinetic energy
Electric energy
thermal energy (friction)
Energy chain Ecologically usefull?
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Niagara falls power station
Electric energy
Kinetic energy of water
Potential energy of water
???
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Energy: The most important concept of physics
Energy: One of the most imortant subjects in everyday life.
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshop 2 14.-19. April 2013 Mallinckrodt-Gymnasium Dortmund
Workshops
1. Comenius Homepage E012. C02 survey E013. Human energyy turnover 2054. Work of muscles 2055. Thermoregulation 2056. Radiant heater man,
thermal image 2077. Energy transformation 207
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