Download our brochure


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), Malaysia

I was new to teaching IB and moved to a brand new school with no other Physics teacher and no resources at all... With the huge help from the InThinking Physics site I was able to put in place a course with no problems at all. It has been like having...

Graeme Keer-Keer, Alcanta International School, China

I consider Chris Hamper's InThinking page for IB Physics to be an indispensable resource for the course. Whether you use his textbook or not the IA section alone is worth the subscription cost.

Bryon Farrow, Suzhou Singapore International School, China


Air con?

16 July 2017

Saw this interesting idea on facebook, electricity free air conditioning. The idea is that putting plastic bottles into a window will cause... more

Resonating radiator

11 July 2017

I was sitting at my desk and suddenly the radiator sprang into life. Took me some time to locate the source of the buzz but definitely the radiator.... more


10 July 2017

Alberte. Alberte Thude. I never did ask her how she pronounces her second name, maybe you don't pronounce the e in which case it would be Thud.... more

Subscriber comments

  • 23 Jul Chris Hamper
    Worked Solutions
    Hi Saleem; You can get the mark schemes but As you say, these aren't detailed solutions. I have done some here but ran out of energy at 2011, maybe I will start again with the new papers.
  • 23 Jul Saleem Khan
    Worked Solutions
    As you mentioned regarding "Question Bank reservations"; we too have the same stand. Therefore, we need your guidance from where can we buy a better mark scheme resource?
  • 23 Jul Saleem Khan
    Worked Solutions
    Hi Chris, Can we buy "DETAILED SOLUTIONS OF PAST DP Exam QPs" from somewhere? Mark schemes of Cambridge IGCSE and A Level exams are supported with some steps/details; however, MS of IBDP just generally give the end answer only.
  • 19 Jul Chris Hamper
    Great idea, I'll try to think of some relevant to my situation in Norway, the mass of a mountain, or the volume of water in the fjord.
  • 19 Jul Byron Farrow
    Also try this:
  • 19 Jul Byron Farrow
    Something that I do that probably fits in this topic is to give the student's Fermi problems - problems that they can only answer by using estimation skills, hopefully getting answers correct to within an order of magnitude or so. A good description...
  • 8 Jul Chris Hamper
    My Essay
    I don't think this would be a good idea, would be very difficult to make any personal input.
  • 8 Jul Sarika Dudeja
    My Essay
    Is it a good idea to research on "Possibilties of escaping a black hole" as EE topic? The research will be purely theoretical.
  • 19 Jun Chris Hamper
    Research Question
    Hi Colin, It could've ended up as chemistry but his supervisor has little knowledge of that subject so encouraged a physical approach, restricting any mention of sulphur bonds to the discussion section. To remove the possible effect of the...
  • 16 Jun Colin Cuthbert
    Research Question
    Actually I think I've answer the second. You could measure the force exiting the balloon. I've pressure gauges but they're hard to use in this instance.
  • 16 Jun Colin Cuthbert
    Research Question
    Hi Chris, Two questions. Would the balloon EE inevitably be too Chemistry (long chains polymers etc)? How would you measure the pressure?
  • 12 Jun lee kim
    AHL answers
    Thanks - pretty obvious when I think about it.


Higher Level Physics

Higher Level Physics by Chris Hamper. Comprehensive coverage of the entire HL course.

more info