This introduction covers The Unstoppable Truck within Momentum for GCSE Physics. Revise Momentum in Forces for GCSE Physics with 13 exam-style questions and 6 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 1 of 12 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 12
Practice
13 questions
Recall
6 flashcards
📖 The Unstoppable Truck
A tennis ball at 50 m/s is annoying. A truck at 50 m/s is deadly. Same speed, VERY different momentum. Momentum combines mass AND velocity — it's the "oomph" of moving objects. Here's the beautiful thing: momentum is ALWAYS conserved. In any collision or explosion, total momentum before = total momentum after. This lets us predict what happens when things crash, from snooker balls to cars to galaxies colliding!