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19 to 21 October 2018
9 to 11 November 2018
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Physics is becoming so unbelievably complex that it is taking longer and longer to train a physicist. It is taking so long, in fact, to train a physicist to the place where he understands the nature of physical problems that he is already too old to solve
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@Chrishamper 17 Mar 17:01RT @TOKtweet: Beta version of Chris Hamper's amazing Physics website for IBDP students now out. Great for revision - & FREE - https://t.co/…
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AimsState Newton's second law.Understand the relationship between change of velocity and force.Apply Newton's second law to solve problems.Apply Newton's second law in a practical situation.Newton's second lawFirst we will start with a simple statement that applies to bodies with constant mass:The acceleration of a body is proportional to the unbalanced force applied and inversely...
AimsDefine a forceAdding forces vectorially.free body diagrams.Balancing forcesDefinition of a ForceA push or a pullThe unit of force is the newton, 1 N is approximately the force required to hold a mass of 100 g.When you push a body it can start to move. Why isn't force defined as the quantity that makes things move?Forces as a vectorImagine two strings attached to some object. Two forces can...
IntroductionIn this practical the mass and diameter of different balls of Plasticine will be measured in order to verify that the mass of a sphere is proportional to the cube of its diameter. This is a simple experiment but introduces the concepts of uncertainties, data processing and graphing.Measuring diameterTake a piece of Plasticine and roll it into a ball. Try measuring its diameter with a ruler...
AimsIntroduce the concept of field lines.Draw field lines for different examplesDefine potentialDraw lines of equipotentialUnderstand the relationship between field lines and lines of equipotential.Addition of field and potentialIntroductionThe Earths gravitational field is the region of space where a particle of mass will experience a force towards the centre of the Earth. Does this mean that the...
Ingebjørg and Tonia are very pleased with the result of their experiment which is under the coat on the table. They measured the Specific heat capacity of water using an electric kettle. Not happy with their result over 5000 Jkg-1K-1 they decided to insulate the kettle with a coat. Norwegians have good winter coats and Ingebjørg is Norwegian so the change was significant. You also get...
AimsExplore the nature of EM radiation from a black body.Show that Power/Area is proportional to T4.State and apply Stefan - Boltzmann and Wein's laws.Describe the interaction between EM radiation and different types of matter.Define surface heat capacity, emissivity and albedo.Understand the greenhouse effect.Build an iterative simulation of the Earth - Sun system with Excel.Energy from the sunEnergy...
AimsUnderstand how the energy stored in fuels originates from the Sun.Use Sankey diagrams to represent energy flow.Calculate the amount of energy release when different fuels are burnt.Understand the principal of a heat engine.Understand the principal of a generator.FuelsFuels are chemicals that are burnt to produce heat energy which can be converted into mechanical energy by an engine or turbine...
Introduction In this practical the pressure of a sample of gas trapped in a syringe will be measured with a pressure sensor. Theory Boyles law states that for a fixed mass of gas at constant temperature the pressure will be inversely proportional to the volume. This can be expressed as: PV = nRT Where n = the number of moles R = molar gas constant (8.31 m2kgs-2K-1mol-1) Method Connect the pressure...
Here I am going to make a second set of tests for each unit of the course. They will test the knowledge gained in the Activities.These pages will be developed during 2017/2018, my aim is to complete the tests before my students finish the units, however I will probably be a bit faster than that :-)
Introduction In this practical the input and output of a half wave and full wave rectifier will be investigated with a datalogger. Method Depending on the equipment available you can either build the circuit by clipping components together or using a soldering iron. If doing the latter make sure that you get proper instruction on how to use the soldering iron properly. The best way to ensure a good...
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...
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.
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...
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
29 January 2018
Nynke and Mirandas made up a song about the physical consequences of flying pigs, here it is. more
21 Feb Chris Hamper
SL/HL Core answerstry the link on the left
21 Feb Andrew Thom
SL/HL Core answersHi, getting a 404 error for Electron energy levels.. Cheers Andy
19 Feb Chris Hamper
Required practicalsHi Craig; Yes, I think you could kill two birds with one stone.
18 Feb Craig Fitzsimmons
Required practicalsGood 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...
16 Feb Chris Hamper
Atomic, nuclear and particle physicsthere are some here you have to make a account though.
16 Feb Liliane Berty
Atomic, nuclear and particle physicsGood morning, please I need somme solved exercices concerning Feynman diagrams.
14 Feb Chris Hamper
GasesI should add that the gas is air.
14 Feb Bill Collins
Gasesit seems like question #1 needs more information in order to be solved
10 Feb Chris Hamper
Diffraction and resolutionHi Joe; yes I am assuming an optical instrument would have a circular aperture.
9 Feb Joe Cope
Diffraction and resolutionTo clarify, the students proposed C as an answer. Thanks again! Joe
9 Feb Joe Cope
Diffraction and resolutionHi 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 lawOops, x replaced with v. Thanks for reporting, Elzbieta.