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Physics
IB DP Category 1
Paris, France, 13 - 15 November 2026
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Physics: A focus on the experimental programme
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Quote of the day
In physics, your solution should convince a reasonable person. In math, you have to convince a person who's trying to make trouble. Ultimately, in physics, you're hoping to convince Nature. And I've found Nature to be pretty reasonable.
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Emma's experiment(s)
As a workshop leader, I'm often asked for exemplar programmes of experimental work - a prefilled list of all the investigations my class engages with throughout the course. Well, we're up and running,...
Watt turbine?
Hi. It’s a long time since I (Chris) wrote a blog post, but this Instagram video (no sound) inspired me. In the video, the presenter demonstrates how amazing this turbine is by giving it a small push,...
Recommendations
See all"This is a great resource for IB Physics teachers. I have been using it and will continue using the same in future. The resources of IA are great. I can strongly recommend to any Physics teacher of the world for this site. Thank you for maintaining the..."
Arun Mukherjee
International School Of Penang (Uplands)
"In Thinking site for IB physics is a wonderful resource to learn and teach IB physics effectively. I have been trained mostly through Chris Hampers' ideas and innovations on this site. I couldn't have made it without this resource. Thank you for making..."
Sarika Dudeja
The Heritage School
Subscriber comments
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Question #6 - it should be asking for centripetal force. The question now asks for centripetal acceleration instead.
A2 interactive: Circular motion -
Ah yes, sorry, I see it now!
B5 MCQs: Current and resistance -
Not sure I follow, Benson; the potential energy in a system of two or more negative particles is positive (they repel). Is there a sign convention I am missing?
B5 MCQs: Current and resistance
Emma
Site authorThanks Zhenqi! I've done a general tidy up of units while here, too :)
A2 interactive: Circular motion