Charge, current, and potential difference
Charge is a property, current is charge flow rate, and potential difference is energy per unit charge. Keep these definitions distinct.
Greek Gymnasium Grade 3 / Physics / Curriculum
Ηλεκτρική ενέργεια: structured theory, worked examples, answered practice, and a mastery checklist for Greek Gymnasium Grade 3.
Unit
The essential chapter ideas in a clear sequence before practice.
Charge is a property, current is charge flow rate, and potential difference is energy per unit charge. Keep these definitions distinct.
Draw a closed circuit with correct symbols. Apply charge conservation at junctions and energy conservation around loops where required.
Field lines indicate direction and relative strength. In induction, changing magnetic flux is linked to induced potential difference.
Physics
Follow the method step by step and check why every step is valid.
A 7 Ω resistor is connected across 35 V. Find current and power.
Physics
Connect formulae to phenomena, write units correctly, and explain results.
The structure follows the official textbook layout and is used to organise study.
The areas that usually create mistakes or need extra revision.
I = 5 A, P = 175 W
Before calculating, explain the key idea from “Θερμικά αποτελέσματα ρεύματος” and which conditions must be checked.
The answer should show not only which rule is used for “Θερμικά αποτελέσματα ρεύματος”, but also why it is valid here.
Ηλεκτρική ενέργεια
Try independently, use the hint if needed, then open the answer guide.
1. Explain the idea and give one correct foundation example for “Θερμικά αποτελέσματα ρεύματος”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Θερμικά αποτελέσματα ρεύματος” to a physical law or model, correct units, and an interpretation.
2. Solve an application and show every intermediate step for “Μαγνητικά αποτελέσματα ρεύματος”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Μαγνητικά αποτελέσματα ρεύματος” to a physical law or model, correct units, and an interpretation.
3. Compare a correct and an incorrect approach and justify the difference for “Ηλεκτρική ισχύς”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Ηλεκτρική ισχύς” to a physical law or model, correct units, and an interpretation.
4. Create a short exam-style question and check your answer for “Κατανάλωση ηλεκτρικής ενέργειας”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Κατανάλωση ηλεκτρικής ενέργειας” to a physical law or model, correct units, and an interpretation.
Where to start: textbook, daily material, PDFs, videos, and worked examples.
Targeted practice before full tests so coverage is clear.
How to measure progress in this chapter and when it enters a cumulative mock.
What to do after finishing the chapter and how it connects to the next unit.
Note: for the official examinable syllabus of each school year, always confirm with the school, tutor, and current Ministry/IEP announcements.