Soldiers & Marsbars

Embed Size (px)

Citation preview

  • Electricity and Soldiers JHU 2005

  • Menu JHU 2005

    Current in a series circuitCurrent in a parallel circuitVoltage in a series circuitVoltage in a parallel circuitCurrent explainedVoltage explainedDifferent resistances in seriesResistance explainedDifferent resistances in parallel

  • GoNexte-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-e-Electrons move round the circuitWhen electrons move it is called electric currentCurrent Explained JHU 2005

  • Current ExplainedNextIn these animations soldiers will represent the moving electrons JHU 2005Go

  • GoCurrent in a Series CircuitAgainNext JHU 2005

  • Current in a Series CircuitNextAgainThe current in a series circuit is the same all the way round JHU 2005

  • GoCurrent in a Parallel CircuitAgainNext JHU 2005

  • Current in a Parallel CircuitAgainNextThe current in a parallel circuit splits up at a junction JHU 2005

  • Voltage ExplainedAgainNextThe soldier picks up energy (mars bars) at the batteryThe soldier uses the energy to get past the componentThe soldier must use all his energy in the circuitThe difference between the number of mars bars before and after the component is called the potential difference JHU 2005

  • Voltage ExplainedAgainNextElectrons pick up electrical energy measured in volts at the batteryThe electrons transfer energy to another form at the bulbAll the volts of energy are transferred within the circuitThe difference between the volts carried before and after the component is called the potential differenceNext JHU 2005

  • GoVoltage in a Series CircuitAgainNext JHU 2005

  • Voltage in a Series CircuitNextThe voltage in a series circuit is shared between the componentsAgain JHU 2005

  • GoVoltage in a Parallel CircuitAgainNext JHU 2005

  • Voltage in a Parallel CircuitAgainNextThe voltage in a parallel circuit is the same across each component JHU 2005

  • NextGoResistance ExplainedAgainNextResistance is a measure of how difficult a component is to get pastMore energy is needed to get past a bigger resistance JHU 2005

  • GoResistance in a Series CircuitAgainNext12 JHU 2005

  • Resistance in a Series CircuitNextThe component with a higher resistance will have a higher voltageAgain12 JHU 2005

  • GoResistance in a Parallel CircuitAgainNext21 JHU 2005

  • Resistance in a Parallel CircuitAgainNext21The component with a higher resistance will have a lower currentBoth components have the same voltage JHU 2005