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5.2. Heating Effect of an Electric Current

This section is CHUNKY. That is, it builds heavily upon all the electricity stuff from GCSE and piles on a huge amount more content. Initially this one certainly feels like a mountain, but with a bit of practice the problems eventually 'click' and become second nature (...hopefully).

 

Resistance and Ohm's Law

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PHET have a brilliant circuit simulation programme. Try building some series and parallel circuits with multiple components and looking at the effect on current and voltage.

Video Lessons

Resources

IB Physics
Topic 5 Notes
IB-Physics.net
Chapter 5 Summary
IB Revision Notes
Isaac Physics
Ohm's Law Introduction
Mr. G
5.2 Teaching Notes
5.2 Student Notes
Physics and Maths Tutor
Electricity Definitions
Electricity Key Points
Electricity Detailed Notes
Electricity Flashcards
A Level Resources - content slightly different

Questions

 

IV Characteristics

There are 5 of these SUVAT equations.

Video Lessons

Resources

IB Physics
Topic 5 Notes
IB-Physics.net
Chapter 5 Summary
IB Revision Notes
Isaac Physics
Electric Components
Level 5/6 Beyond IB
Mr. G
5.2 Teaching Notes
5.2 Student Notes
Physics and Maths Tutor
Electricity Definitions
Electricity Key Points
Electricity Detailed Notes
Electricity Flashcards
A Level Resources - content slightly different

Questions

Cambridge University Press
Topic 5: Add Qs
Topic 5: Add Qs MS
Topic 5: MCQs
CUP Website Link
Freely available online
Grade Gorilla
5.2 (Circuit Basics) MCQ
Topic 5 (Circuits) End Quiz
Quick IB Specific Mixed MCQs
Mr. G
5.2 Formative Assessment
Topic 5 Summary Qs
IB Specific Questions
Physics and Maths Tutor
IV Characteristics (AQA 2)
IV Characteristics MS (AQA 2)
A-Level Qs: overlapping content

Kirchoff's Laws

 

Kirchoff Practice

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Kirchoff's Laws are a tricky beast to get your head around, yet they are hugely important in circuit analyses so it's worth spending some time making sure you are confident.

For practice, I can't rate the following simulation highly enough. Randomise the circuit setup by clicking 'Change Circuit', then use Kirchoff's Current and Voltage Laws to calculate the unknown currents. If you can do 5 in a row then you've got it sorted!

Video Lessons

Resources

IB Physics
Topic 5 Notes
IB-Physics.net
Chapter 5 Summary
IB Revision Notes
Isaac Physics
Kirchoff's Laws
Mr. G
5.2 Teaching Notes
5.2 Student Notes
Physics and Maths Tutor
Electricity Definitions
Electricity Key Points
Electricity Detailed Notes
Electricity Flashcards
A Level Resources - content slightly different

Questions

 

Resistivity

Resistivity is a materials property.

Video Lessons

Chris Doner
Resistance (Resistivity)
IB Specific
Khan Academy
Resistivity and Conductivity
Conductivity not on IB
Physics Online
Resistivity
Resistance and Temperature
Practical Tips
Science Shorts
Resistivity
Practical Tips
Study Nova
Resistivity

Resources

IB Physics
Topic 5 Notes
IB-Physics.net
Chapter 5 Summary
IB Revision Notes
Isaac Physics
Resistivity
Mr. G
5.2 Teaching Notes
5.2 Student Notes
Physics and Maths Tutor
Electricity Definitions
Electricity Key Points
Electricity Detailed Notes
Electricity Flashcards
A Level Resources - content slightly different

Questions

Cambridge University Press
Topic 5: Add Qs
Topic 5: Add Qs MS
Topic 5: MCQs
CUP Website Link
Freely available online
Grade Gorilla
5.2 (Circuit Basics) MCQ
Topic 5 (Circuits) End Quiz
Quick IB Specific Mixed MCQs
Mr. G
5.2 Formative Assessment
Topic 5 Summary Qs
IB Specific Questions
Physics and Maths Tutor
Resistivity (Edexcel 1)
Resistivity MS (Edexcel 1)
Resistivity (AQA 2)
Resistivity MS (AQA 2)
A-Level Qs: overlapping content
 

Power Dissipation

We previously look at power in Section 2.3, specifically mechanical power when doing work. Here we come back to this idea with a bit of a look into electrical power.

Video Lessons

Resources

IB Physics
Topic 5 Notes
IB-Physics.net
Chapter 5 Summary
IB Revision Notes
Isaac Physics
Electrical Power
Mr. G
5.2 Teaching Notes
5.2 Student Notes
Physics and Maths Tutor
Electricity Definitions
Electricity Key Points
Electricity Detailed Notes
Electricity Flashcards
A Level Resources - content slightly different

Questions

Cambridge University Press
Topic 5: Add Qs
Topic 5: Add Qs MS
Topic 5: MCQs
CUP Website Link
Freely available online
Dr French's Eclecticon
Electrical Circuits
Electrical Circuits Solutions
Link to Dr French's Site
Extension: Pre-University Material
Grade Gorilla
5.2 (Circuit Basics) MCQ
Topic 5 (Circuits) End Quiz
Quick IB Specific Mixed MCQs
Mr. G
5.2 Formative Assessment
Topic 5 Summary Qs
IB Specific Questions

Additional Resources

 

IB Questions

A question by question breakdown of the IB papers by year is shown below to allow you to filter questions by topic. Hopefully you have access to many of these papers through your school system. If available, there may be some links to online sources of questions, though please be patient if the links are broken! (DrR: If you do find some broken links, please contact me through the site)

 

Questions on this topic (Section 5) are shown in pale green.

Use this grid to practice past IB questions topic by topic. You can see from the colours how similar the question topic breakdown is year by year. The more you can familiarise yourself with the IB question style the better - eventually you will come to spot those tricks and types of questions that reappear each year.