8 July 2023, 9:00 AM - 1:00 PM
Singapore Physics League
A fast-paced team contest to solve fun physics problems
What is Physics League?
The Singapore Physics League (SPhL) is a 4-hour online competition, where teams of 3 - 5 students race to solve fun physics problems.

Learning and doing physics is a team sport - gather your group of fellow physics enthusiasts to participate as a team and discuss interesting physics together!
scheduleWhen and where?
SPhL 2023 will be held on 8 July 2023 (Sat), from 9 AM to 1 PM.

As the competition is fully online, you and your team may be physically located at any spatial coordinates of your choice!

All you need is a computing device with a modern web browser and a stable Internet connection in order to gain access to our online platform. You must log in to view problems and submit answers.
groupsWho can participate?
This competition is open to all students currently studying in a Singapore secondary school or junior college (or equivalent). There are two categories in the league:

SPhL (Junior): for teams whose members are all in secondary school and have all registered for the Singapore Junior Physics Olympiad (SJPO) 2023.

SPhL (Senior): for teams whose members are all in junior college.

You should form teams of 3, 4 or 5 students. Your team can comprise students from different schools.
How it works
At any time, your team will be given access to 4 problems. You can submit your answer for any of these problems whenever you wish, and the website will give instant feedback on it:

done If your answer is correct, you gain points, and you will be prompted to select a new problem to unlock.

close If your answer is incorrect, you can re-attempt the problem for partial points.
Problems vary greatly in difficulty level; some are comparable to questions from your school exams, others are closer to national olympiad questions or even beyond. The examinable scope will follow the IPhO syllabus.

There will be some differences in the problems for each category (Junior / Senior).

For a rough sense of the style of problems, view past years' SPhL problems here.
You should communicate and coordinate closely with your teammates, but there should be no communication with anyone else during the competition (e.g. family members, friends in other teams, etc.).

This competition is completely "open-book", so you're allowed to use any reference materials or even computational tools at your disposal. You can even learn some physics on the fly if the problem uses unfamiliar terminology.

Devise a team strategy to tackle the problems effectively and efficiently!
Why should I participate?
For the fun of it! The competition will be thrilling and dynamic - similar to a game. You can look forward to many exciting elements, like progressive unlocking of problems, live leaderboards, and Half Hour Rush.

The competition will require lots of collaboration and is designed to stimulate fruitful and enjoyable discussions of physics. Hopefully, you will find our problems innovative, interesting and intellectually stimulating!

You also stand a chance to win awards, prizes, and glory!

Are you excited?
assignmentRegister for Physics League!
Once you have chosen your dream team and decided on a team name, approach your school physics teacher to register for SPhL.

There is no limit to how many students from each school can participate. So, don't be shy - go ahead and register!

For secondary school students: Important note about registration
This information only concerns teams in the SPhL (Junior) category. If your team is in the SPhL (Senior) category, none of this applies to you.

With effect from 2022, participation in SPhL (Junior) is bundled with participation in the Singapore Junior Physics Olympiad (SJPO). To join one, you must also join the other. This is a single registration process for both SJPO and SPhL (Junior) at the same time.

Nonetheless, awards for SJPO and SPhL (Junior) are independently judged. Your team award for SPhL (Junior) will not affect your individual award for SJPO, and vice versa.

The deadline for schools to submit their finalised list of teams is 31 March 2023 (Friday). Your school will likely have set an earlier internal deadline - please check and follow this.

If your dream team comprises students from different schools…
Such an arrangement is perfectly fine by us!

We will require all students of the team to register through their respective schools.

To be crystal clear about this, let's say for instance that your team comprises 2 members from school X, 2 members from school Y, and 1 member from school Z. Students from school X register with the teacher at school X, students from school Y register with the teacher at school Y, and the student from school Z registers with the teacher at school Z.

When registering, all teachers at schools X, Y, Z need to be informed of your team name, as well as the names and respective schools of all other students in the team. They will have to indicate in the registration form that your team comes from different schools. We can then verify that everything is in order once we receive the registration details from all other schools.

If your dream team comprises students from different levels…
This is permitted, as long as your team members' categories do not mix. In other words:

done Secondary school students from different levels are permitted to join SPhL (Junior) as a single team.
done Junior college students from different levels are permitted to join SPhL (Senior) as a single team.
close However, a team cannot comprise both secondary school and junior college students.

As long as these conditions are met, having members from different levels is permitted.

No special procedure is needed for registration here, as your teacher will always send us the level of every participating student.

If you're a teacher looking to register students from your school…
First of all, thank you for your support in facilitating the registration process for SPhL! Our efforts would not reach as many students without your invaluable assistance, and we are immensely grateful for it.

Your HOD (Science) should have received an email from MOE in early Feb 2023, with detailed instructions for registration.

You will need to gather the name, level, and email address of each participating student from your school. In the spreadsheet template provided in the MOE email, you would also need to indicate their team names (as well as team members from other schools if applicable). Please submit the completed spreadsheet by 31 March 2023.

If you did not receive the MOE email, please drop us an email via [email protected], and we'll forward all the information you need. Should you have any technical queries regarding the registration procedure, or any other aspect of SPhL, feel free to ask too.

A few weeks after the registration deadline, we'll send more information to your registered email address - check your spam folder too! Please email us at [email protected] if you still have not heard from us by 1 May 2023.
Having trouble finding teammates? Or unclear about how the competition works?

We've set up a Discord server to help you! Join at https://discord.gg/VRszZ6yyGH to connect with other interested participants and us organisers.
question_answer Frequently Asked Questions
Is this an official competition?
Yes! SPhL is strongly supported by the Institute of Physics Singapore (IPS) - the same organisation that also runs national physics competitions like SJPO, SPhO, SYPT. We are also supported by the Singapore Ministry of Education (MOE) and sponsored by Micron.

We require all participating students to register through their schools. All participants will also receive certificates, and some teams will win awards based on their performance.
What information do I need to provide when registering?
You need to give us your team name - a moniker that uniquely identifies your team. Go for something fun, casual, or quirky! Some examples from past contests include “Sherlock Ohms”, “Newton's Apples”, “Complicated Harmonic Motion”.

We'll also need a little information about each of your team members: Name, level, school, and most importantly… email address! Please provide us a working email address that you check regularly. We will send out some really important information to whichever email address you give us here. We want this delivered to you - and not into a black hole.
Is it better to join as a team of 3, 4, or 5?
We definitely encourage teams of 5. There is tremendous strategic benefit to having more members! With more hands and minds at work, more problems can be conquered, and consequently, more points scored, increasing your chances of an award.

Besides, how often do you get such a great excuse to talk all-things-physics and “jam” with fellow physics enthusiasts? As the adage goes: the more the merrier!
I can't find enough teammates to form a team of 3. Can I take part individually or as a pair?
You can form a team if you just get one or two more students to join!

If you are still unable to find teammates within your school or amongst people you know, we run a Discord server for you to band together with other like-minded students looking for a team. Click here to join - don't be shy!

The joy of SPhL largely comes from teamwork, team spirit, team bonding. We want you to have the best experience - this is a key element of what sets SPhL apart from other competitions!
My school is not aware of / has not announced registration for this competition. How can I register?
For verification purposes, we require all registrations to come officially through schools rather than directly from students. Hence, you should consult your physics teachers to help with registration.

If your physics teacher isn't aware of this competition, please direct them to our website - particularly our little note for teachers linked here: sgphysicsleague.org/#for-teachers

Do drop us an email should you require additional help on this!
Can my dream team comprise students from different schools? How do we register?
Yes, that is allowed! For additional instructions on registration for multi-school teams, please read the note above titled “If your dream team comprises students from different schools…”
Can my dream team comprise students from different levels? How do we register?
This is only allowed if the categories of the different students do not conflict. For more information about this, please read the note above titled “If your dream team comprises students from different levels…”
If I'm not a student currently enrolled in secondary school or junior college (or equivalent), can I take part?
Unfortunately, this is currently not possible, do drop us an email if you require any further clarifications!

Nevertheless, we will publish all problems and solutions on our website once the competition ends. You may then attempt our problems informally with your friends or by yourself if you like!
About Us
We are a passionate group of fresh junior college graduates who have enjoyed and excelled in various physics olympiads and tournaments back in our school days. We're excited to organise SPhL as a novel way to inspire interest in physics, and to promote lively discussion of physics. Most of all, we want students to enjoy the process of thinking about and talking about challenging physics puzzles.

SPhL 2023 Organising Team
Chief Organiser, Problem Setter
Chief Editor, Problem Setter
Chief Editor
Chief Developer
Web Developer, Problem Setter
Web Developer, Problem Setter
Web Developer, Problem Setter
Systems Engineer
Systems Engineer
Data Analyst, Problem Setter
Problem Setter
Problem Setter
Problem Setter
Problem Setter
Problem Setter
Problem Setter
Graphic Designer
Graphic Designer

SPhL is supported by the Institute of Physics Singapore (IPS) and the Singapore Ministry of Education (MOE). We are also grateful to Micron for its sponsorship.

This competition was originally inspired by the Online Physics Brawl organised by FYKOS. If you enjoy SPhL, you would probably love Online Physics Brawl too. So do check it out!

While we are not directly associated with them, do also check out the Singapore Chemistry League if you're interested in another similar competition to ours!