Workshop 214.-19. April 2013Mallinckrodt-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 1 in Ayr

Emphasis on power generation


Workshop 1 in Ayr

Whitelee Windfarm

Wind power


Workshop 1 in Ayr

Cruachan Power Station

Hydroelectric power


Workshop 1 in Ayr

Longannet Power Station

Coal power


Workshop 1 in Ayr

Engineering design day

Wave power


Workshop 1 in Ayr

Ceilith

Human power


Workshop 2


Workshop 2

Emphasis on

•Energy in science•Mobility in the 21. century


What is energy?

Energy is the ability to work.


What is work?

Everyday language: Expenditure of muscular effort

Science:an applied force moves an object through a distance.


What is work?

Examples

•Lifting work•Accelerating work•Frictional work•Streching work


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)


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

Work ist stored as Energy.

Lifting Work potential Energy

Accelarating Work kinetic Energy

Frictional Work Heat Energy


Three principles of energy

Energy can be transfered from one body to another.

1) Transfer of energy



Any form of energy can be transformed into another form.

2) Transformation of energy



Energy can not be destroyed or created.

3) Conservation of energy


3) Conservation of energy

Potential energy

Kinetic energy

Thermal energy

Light energy } lost


Forms of energy

•Thermal energy•Thermal energy

Mechanical energy

Thermal (Heat) energy

Light energyElectric energy

Magnetic energy

Nuclear energy

Chemical energy

Energy of sound

http://en.wikipedia.org/wiki/Thermal_energy

http://en.wikipedia.org/wiki/Thermal_energy


Cruachan Power Station

Energy balance

Electric energy

Potential energy

Kinetic energy

Electric energy

thermal energy (friction)

Energy chain Ecologically usefull?


Niagara falls power station

Electric energy

Kinetic energy of water

Potential energy of water

???


Energy: The most important concept of physics

Energy: One of the most imortant subjects in everyday life.



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

Documents

Workshop 214.-19. April 2013Mallinckrodt-Gymnasium Dortmund