Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!
IB Approved Workshops
Physics
IB DP Category 1

Paris, France, 13 - 15 November 2026

Find out more
Physics: A focus on the experimental programme
IB DP Category 3

Paris, France, 19 - 21 February 2027

Find out more
Physics
IB DP Category 2

Berlin, Germany, 26 - 28 February 2027

Find out more
Virtual Think-Ins
InThinking Shorts

Find all InThinking events at
inthinking.net

Selected student pages

Theme A: Space, time, and motion
eBook
Theme A: Space, time, and motion

How do objects move and interact in space and time? Kinematics is the study of displacement, velocity, acceleration and time. How do objects interact? A study of Newton's laws, momentum, collisions and...

07 August 2026
Extended Essay
DP essentials
Extended Essay

A guide to writing the Extended Essay in physics, for students. Choices For the student the early days of the EE are full of choices, firstly which subject to choose, secondly which topic and thirdly...

30 August 2026
C4 practical: Speed of sound (drinking straw)
Activities
C4 practical: Speed of sound (drinking straw)

In this practical the speed of sound will be measured by analysing the standing wave in a drinking straw using a computer program called Audacity. This can be downloaded free from sourceforge. If you...

18 August 2023
E3 practical: Measuring half life of beer foam support
Activities
E3 practical: Measuring half life of beer foam support

The problem with experiments on radioactive decay is that you need a source that has a reasonably small half life, I used to have a Protactinium generator which stopped producing any radiation several...

28 June 2023
D2 practical: Uniform electric field
Activities
D2 practical: Uniform electric field

In this practical the the electric field between two parallel plates will be investigated using conducting paper. Set up the electrodes as in the photo below. It is best to use the side of paper without...

18 August 2023
C5 PBL: Doppler effect support
eBook
C5 PBL: Doppler effect support

I've never played angry birds but know it's something to do with throwing birds, I guess that's what makes them angry. We are not going to throw the birds but we'll release them one at a time from a moving...

27 June 2023
C3 notes: Diffraction and interference
eBook
C3 notes: Diffraction and interference

So far we have dealt with diffraction and interference on a qualitative level; by now you should understand the basics and make some predictions of increases or decreases but not calculate values. You'll...

18 August 2023
E3 MCQs: Nuclear mass and exponential decay
eBook
E3 MCQs: Nuclear mass and exponential decay

...

18 August 2023
B5 MCQs: Potential difference
eBook
B5 MCQs: Potential difference

...

18 August 2023
A1 practical: Ball on a slope support
Activities
A1 practical: Ball on a slope support

The apparatus in this practical is rather simple comprising of a ramp, ball and a stop clock. I have often used this example in workshops since the equipment is so portable, then I use some 40cm long...

08 January 2026
E2 solutions: Wave particle duality
eBook
E2 solutions: Wave particle duality

1. Given that the resolving power of a microscope is proportional to the 1/wavelength of radiation used, show that if 600nm light is replaced with electrons accelerated through a Pd of 40,000V the resolving...

28 June 2023
A1 practical: Measuring g (card drop) simulation
Activities
A1 practical: Measuring g (card drop) simulation

This practical can be simulated using interactive physics to drop a rectangle past a marker. Displaying the grid helps to set the card size which can be adjusted as in the actual experiment. Using the...

08 January 2026

Help