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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

I am very pleased with the website and the material. Love the animated multiple choice test questions. That is a great way to ask questions and cannot be accomplished with questions on paper. Also, the labs are very good and the suggestions are very...

Susan Vogel, Rockwall-Heath High School, USA


Winter warmer

12 February 2018

Ingebjørg and Tonia are very pleased with the result of their experiment which is under the coat on the table. They measured... more

If pigs could fly

29 January 2018

Nynke and Mirandas made up a song about the physical consequences of flying pigs, here it is. more

Get some work done

24 January 2018

Me: Helene, why aren´t you doing any work?Helene: Because there is no displacement in the direction of the force.Well it didn´t quite go like... more

Subscriber comments

  • 21 Feb Chris Hamper
    SL/HL Core answers
    try the link on the left
  • 21 Feb Andrew Thom
    SL/HL Core answers
    Hi, getting a 404 error for Electron energy levels.. Cheers Andy
  • 19 Feb Chris Hamper
    Required practicals
    Hi Craig; Yes, I think you could kill two birds with one stone.
  • 18 Feb Craig Fitzsimmons
    Required practicals
    Good afternoon (Australian time!), Is the traditional pendulum practical (eventually plotting period squared and length) considered ok for the 'measuring the acceleration of free fall'? If not, then we will still do it anyway as it is such...
  • there are some here you have to make a account though.
  • Good morning, please I need somme solved exercices concerning Feynman diagrams.
  • 14 Feb Chris Hamper
    I should add that the gas is air.
  • 14 Feb Bill Collins
    it seems like question #1 needs more information in order to be solved
  • 10 Feb Chris Hamper
    Diffraction and resolution
    Hi Joe; yes I am assuming an optical instrument would have a circular aperture.
  • To clarify, the students proposed C as an answer. Thanks again! Joe
  • Hi Chris, Working through this with my students, they proposed for #3 that we should just use θ=λ/a rather than using Rayleigh's criterion (θ=1.22λ/b). Knowing that we are talking about an optical instrument with an aperture of 2cm (rather...
  • 9 Feb Chris Hamper
    Faraday's law
    Oops, x replaced with v. Thanks for reporting, Elzbieta.


Higher Level Physics

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

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