Momentum and impulseDifficulty ●●●●●
A rock climber falls and is stopped by her rope. Climbing ropes are designed to stretch.
Which statement explains why a rope that stretches reduces the risk of injury, compared with a rope that hardly stretches?
Starting with Physics · Free during launch
GCSE revision,trained likea sport.
Physics first: 770 original exam-style questions across 29 topics. Hints that never give it away, and Wolf — a coach who explains why the wrong answer was tempting. XP, streaks, crews and Boss Fights.
Try one now
This is how every question works
Pick an answer. If you’re stuck, take a hint — there are three, each a step closer. Then Wolf tells you why the right answer is right, and why yours was tempting if it wasn’t.
In the app, every answer earns XP, and the questions you miss come back for revenge a few days later.
A coach, not a PDF
Hints, not answers
Stuck? Three hints, each one a little closer. You still get to the answer yourself.
Why it was tempting
Every wrong answer comes with the misconception behind it, so you don’t fall for it twice.
Explain your reasoning
Write or say how you got there. The coach marks the reasoning, not just the letter.
XP, streaks, levels
Progress you can see: mastery on every topic and a predicted grade that moves when you do.
Crews
Revise with your mates: same questions, a shared weekly goal, everyone levels up together.
Boss Fights
A full timed mock paper, no hints, verdict at the end. Exam conditions, before the exam.
Four ways to train
Mix 40
An adaptive run: your weak topics, questions near your level, and the mistakes that are due for revenge.
Topic training
Pick a topic and work through it from the first steps to the hardest exam-style problems.
Theory
Structured written questions, marked point by point against a mark scheme.
Boss Fight
A full mock paper against the clock, no hints. Then the debrief.
Every GCSE Physics topic
All topicsChapter 2
Forces and motion
Chapter 3
Forces and pressure
Chapter 4
Forces and energy
Chapter 5
Thermal effects
Chapter 6
Waves and sounds
Chapter 7
Rays and waves
Chapter 8
Electricity
Chapter 9
Magnets and currents
Chapter 10
Atoms and radioactivity
Questions
Is GCSE Beast free?
Yes. It is free during its launch, with no ads. You don’t need an email address: a nickname and a 4-digit PIN are enough.
Which exam boards does it cover?
The questions are written from the official GCSE Physics subject content that every exam board in England follows (AQA, Edexcel, OCR, WJEC Eduqas), at Higher tier, and they suit any physics course at the same level. Every question is original — no exam-board paper is copied.
How does the AI coach work?
Wolf, the coach, explains every answer, gives hints step by step and marks your written reasoning. You can ask follow-up questions in English, French or Spanish. Like any AI it can make mistakes — every question has a “Report a problem” button and each report is checked.
What is a crew?
A small group of friends (or a class) who revise together on GCSE Beast: same question bank, a shared weekly goal and a feed of each other’s wins. Start one and share the invite link.
Does it work on a phone?
Yes — on any phone, tablet or laptop, in the browser. You can add it to your home screen like an app.
Your first session takes 30 seconds
Start a crew, pick a nickname and a PIN, play. Bring your mates in with one link.