LEARN NC

K–12 teaching and learning · from the UNC School of Education

Goal 4

The learner will build an understanding of electric circuits.

Objective 4.01
Measure and analyze the current, resistance, and power in electric circuits.
  • Relate current and voltage for a resistor.
  • Qualitatively describe what happens in terms of electric field strength, current density, and drift electron velocity in a conductor.
  • Explain and calculate how cross-sectional area, length, and material affect the resistance of a resistor.
  • Explain the rate of how heat is dissipated.
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Objective 4.02
Examine and analyze steady-state direct current circuits with batteries and resistors.
  • Define and relate current, resistance, and voltage.
  • Identify series and parallel wiring in a circuit.
  • Determine voltage, current, resistance, and power across series, parallel, and combination circuits.
  • Draw a diagram of a series-parallel circuit using conventional symbols.
  • Calculate terminal resistance and internal voltage for a known battery.
  • Identify and calculate the current, voltage and resistance using Ohm's Law and Kirchoff's rules.
  • Identify the properties and connections of an ammeter and voltmeter.
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Objective 4.03
Evaluate and analyze capacitors in circuits.
  • Explain the capacitance for capacitors in parallel and series circuits.
  • Identify and examine energy storage in a capacitor.
  • Explain the charge and voltage for capacitors in parallel and series circuits.
  • Graph and mathematically express the discharging of a capacitor over time.
  • Calculate and graph voltage and currents over time in a circuit.
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