Parent plan · Week 18 · Electricity, Magnetism & Circuits — connect, calculate and revise — Physics & Environmental Science
Parent teaching plan · 36 weeksUnits to teach or revisit
Chapter 6 · Electricity, Magnetism & Circuits
- Unit 6.5 · Electric Potential, Potential Energy & Capacitors
- Unit 6.6 · Electrical Power, Energy & Circuit Design
Assigned readings
Develop this chapter question: How do fields and circuits transfer energy without consuming charge?
This week’s goals
- Explain models, objects, arrows and axes before substituting values.
- Conserve the relevant charge, momentum, matter and energy account.
- Apply independently, state limits and revise from evidence.
Read A lamp transfers energy while charge keeps circulating at chapter launch and revisit it alongside this week’s linked units, figures and investigation.
Five flexible sessions, normally 50–60 minutes. Two core unit sessions are scheduled, with a third for selected demanding topics. Sample week uses a complete 90-minute paper plus about 30 minutes of corrections within two ordinary-hour equivalents.
Session 1 · Electric Potential, Potential Energy & Capacitors — apply and explain
Use the linked chapter reading, unit explanations, figures and notebook.
Your task
Study Parts 3–4 and selected source-model prompts, then attempt the whole-unit application, illustrated practice and changed independent case. Explain a correction, revise the opening model and complete the exit check.
- Prepare the assigned explanation and identify the question.
- Trace a model or graph, labeling its quantities and units.
- Attempt the assigned reasoning and calculation before opening guidance.
- Compare with criteria and retain an explained correction.
Hint and response guidance
Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.
Q=400 μC; U=½×50×10⁻⁶×64=0.0016 J=1.6 mJ. At16 V, U=6.4 mJ, four times as much. Actual ratings must be separately respected.
- Use the supplied evidence and correct quantity/units.
- Explain the relevant mechanism or relationship.
- Show intermediate working or a labeled model.
- State an assumption, limitation or useful next test.
Session 2 · Extended calculation and transfer — Electric Potential, Potential Energy & Capacitors
Use the linked chapter reading, unit explanations, figures and notebook.
Your task
Reconstruct a worked method without looking at its answer. Then solve this changed case, show intermediate steps and units, explain a limit and compare a second method where appropriate: A 50 μF capacitor is at 8 V. Find Q and U; compare U at 16 V in the same ideal model.
- Prepare the assigned explanation and identify the question.
- Trace a model or graph, labeling its quantities and units.
- Attempt the assigned reasoning and calculation before opening guidance.
- Compare with criteria and retain an explained correction.
Hint and response guidance
Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.
Q=400 μC; U=½×50×10⁻⁶×64=0.0016 J=1.6 mJ. At16 V, U=6.4 mJ, four times as much. Actual ratings must be separately respected.
- Use the supplied evidence and correct quantity/units.
- Explain the relevant mechanism or relationship.
- Show intermediate working or a labeled model.
- State an assumption, limitation or useful next test.
Session 3 · Electrical Power, Energy & Circuit Design — build the model
Use the linked chapter reading, unit explanations, figures and notebook.
Your task
Read the chapter background and unit language. Draw a first model, study the core explanation and Parts 1–2, trace each figure and attempt the visual questions/checks. Complete a first worked case with its answer covered.
- Prepare the assigned explanation and identify the question.
- Trace a model or graph, labeling its quantities and units.
- Attempt the assigned reasoning and calculation before opening guidance.
- Compare with criteria and retain an explained correction.
Hint and response guidance
Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.
It halves from 6 to 3 W; current also halves. 2×0.25×8=4 kWh under the stated operating model.
- Use the supplied evidence and correct quantity/units.
- Explain the relevant mechanism or relationship.
- Show intermediate working or a labeled model.
- State an assumption, limitation or useful next test.
Session 4 · Electrical Power, Energy & Circuit Design — apply and explain
Use the linked chapter reading, unit explanations, figures and notebook.
Your task
Study Parts 3–4 and selected source-model prompts, then attempt the whole-unit application, illustrated practice and changed independent case. Explain a correction, revise the opening model and complete the exit check.
- Prepare the assigned explanation and identify the question.
- Trace a model or graph, labeling its quantities and units.
- Attempt the assigned reasoning and calculation before opening guidance.
- Compare with criteria and retain an explained correction.
Hint and response guidance
Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.
Saving=(0.015−0.009)×2500=15 kWh=5.40×10⁷ J/year. Production, transport, replacement lifespan or disposal is outside this operational-only result.
- Use the supplied evidence and correct quantity/units.
- Explain the relevant mechanism or relationship.
- Show intermediate working or a labeled model.
- State an assumption, limitation or useful next test.
Session 5 · Low-Voltage Circuit Reasoning — plan and examine records
Use the linked chapter reading, unit explanations, figures and notebook.
Your task
Read the full investigation. Define question, boundary, variables, units and route. Use a suitable supervised method or the complete supplied-data route, preserving all records and a first model.
- Prepare the assigned explanation and identify the question.
- Trace a model or graph, labeling its quantities and units.
- Attempt the assigned reasoning and calculation before opening guidance.
- Compare with criteria and retain an explained correction.
Hint and response guidance
Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.
Series current is 0.5 A with 3 V across each resistor. Parallel branches each have 6 V and 1 A, totaling 2 A. Internal resistance causes terminal voltage drop and heating. These paper ideals do not authorize unreviewed physical circuits. Preserve the original observations, intermediate working and a labeled mechanism. Report the relevant boundary and model assumptions, discuss an alternative explanation, and identify the next useful measurement; do not replace unexpected data with the illustrative record.
- Use the supplied evidence and correct quantity/units.
- Explain the relevant mechanism or relationship.
- Show intermediate working or a labeled model.
- State an assumption, limitation or useful next test.
Submit this week
- Labeled first/revised models and intermediate calculations.
- Assigned practice and assessed attempts with explained corrections.
- Investigation record/report when assigned, identifying supplied versus collected data.
Parent / teacher weekly conference
Use actual written work to adjust support. Do not count a copied solution as independent mastery. Extend or redistribute time where needed; home-study records do not certify supervised or mandated laboratory requirements.
- Can each relevant symbol and unit be explained?
- Does the calculation conserve the appropriate quantities?
- Can the learner solve a changed case and explain an assumption?