British Physics Olympiad

Junior Astro Challenge 2021


This is the BAAO Junior Astro Challenge 2021 for Year 10 (Group A) and Year 9 (Group B) and Year 11 (Group C).

It consists of 2 × 25 minute papers each of 30 questions. You will need to work fast!

  • To login, first click Student (for students) or School (for teachers) at the top right of the page (the url changes). Or it will show if you are already logged in.
  • Close other browser windows. Do NOT use the internet

Note to Students

This is not an exam. It is a Competition. Some answers you may think you do not know, but they may be worked out by a process of elimination, looking for clues. If you feel it is difficult, it probably is. Top physicsts in the country will take this. Give it a go. It is an opportunity.

The key aim is that you should enjoy taking part and are encouraged to try out questions that make you think.

  • It is competition that relies on the honesty and integrity of all participants i.e. YOU
  • You may NOT use the internet whilst answering these question
  • Please type in your name correctly after you have logged in and REMEMBER THE PASSWORD YOU CHOOSE
  • You have to work fast and you should not spend too long on one question. Try them all. 
  • You get a mark for a correct answer. No marks are subtracted if you guess incorrectly.


Calculators may be used.                Paper and pencil may be needed to work out some answers. 


Other competitions at GCSE, AS and the upper sixth form year are available at Free online resources can be found there.

Competitions we run:

Intermediate Physics Challenge 2021

The Intermediate Physics Challenge is a Year 11 competition paper taken by 6000 students around the UK and also overseas. Information and past papers are at

BPhO Junior Physics Olympiad 2021

A physics focussed online Quiz taking place in May 2021.