PI.8.4 Describe the slope of Energy and matter the graphical representation of current vs. voltage or Structure and function voltage vs. current in terms of the resistance of the device. PI.8.5 Qualitatively and Simple series circuit closed circuit in the Cause and effect – quantitatively describe how current follows one path changing the voltage or Current time rate of flow of electric charge – resistance of a simple series Power rate at which electrical energy is – (i.e. loop) circuit affects the transferred by an electric circuit voltage, current and power Circuit path in which electrons from a voltage – measurements of individual or current source flow resistive devices and for the entire circuit. PI.8.6 Qualitatively and Parallel circuit circuit is divided into two or Cause and effect – quantitatively describe how more paths changing the voltage or Stability and change. resistance of a simple parallel (i.e. ladder) circuit affects the voltage, current and power measurements of individual resistive devices and for the entire circuit. PI.8.7 Apply conservation of Conservation of energy principle stating that Scale, proportion, and – energy concepts to the design energy cannot be created or destroyed, but can quantity of an experiment that will be altered from one form to another demonstrate the validity of Kirchhoff’s loop rule sum of all the voltages Structure and function – Kirchhoff’s loop rule (∑ΔV = around the loop is equal to zero 0) in a circuit with only a Battery container consisting of one or more – battery and resistors either in cells, in which chemical energy is converted into series or in, at most, one pair electricity and used as a source of power of parallel branches.
PI.8.4 Describe the slope of the graphical representation of current vs. voltage or voltage vs. current in terms of the resistance of the device. Energy and matter Structure and function PI.8.5 Qualitatively and quantitatively describe how changing the voltage or resistance of a simple series (i.e. loop) circuit affects the voltage, current and power measurements of individual resistive devices and for the entire circuit. Simple series circuit – closed circuit in the current follows one path Current – time rate of flow of electric charge Power – rate at which electrical energy is transferred by an electric circuit Circuit – path in which electrons from a voltage or current source flow Cause and effect PI.8.6 Qualitatively and quantitatively describe how changing the voltage or resistance of a simple parallel (i.e. ladder) circuit affects the voltage, current and power measurements of individual resistive devices and for the entire circuit. Parallel circuit – circuit is divided into two or more paths Cause and effect Stability and change. PI.8.7 Apply conservation of energy concepts to the design of an experiment that will demonstrate the validity of Kirchhoff’s loop rule (∑ΔV = 0) in a circuit with only a battery and resistors either in series or in, at most, one pair of parallel branches. Conservation of energy – principle stating that energy cannot be created or destroyed, but can be altered from one form to another Kirchhoff’s loop rule – sum of all the voltages around the loop is equal to zero Battery – container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power Scale, proportion, and quantity Structure and function
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