Quest Online Homework due 5/2, 5/9 and 5/16
Resistance of a Light Bulb lab due 5/14
Unit Test 5/21
Current Electricity Unit Goals
- Know meanings of potential difference (voltage), current, resistance, power. Be able to use appropriate relationships between them with correct abbreviations and units.
- Properly use the terms series, parallel and circuit.
- Draw and decipher circuit diagrams.
- Determine current, resistance, potential difference and power output for any part of a circuit, including
- Simple circuits, series circuits, parallel circuits and complex circuits with both series and parallel elements.
- Describe what affects an object’s resistance and categorize resistors as ohmic or nonohmic
- Interpret graphs about resistance I vs. V and V vs. R.
- Know how to include ammeters and voltmeters in a circuit and what this says about their resistances.
- Describe the structure of a capacitor.
- Use transient currents to describe how steady state voltages and currents are established.
- Describe how houses are wired and the role of circuit breakers.
- Determine loss of energy to heat in wires and describe how it can be reduced.
- Trace the conducting path through light bulbs.
- Describe the souce of internal resistance.
- Use the pressure metaphor for voltage and interpret color-coded voltage diagrams.
