Forces & Motion / Mechanics

Fundamentals
  • What is the difference between mass and weight?
  • What is "centre of mass"?
  • What does "resolving into components" mean?
  • What is the difference between a vector and a scalar?
  • What is the difference between distance and displacement?

    • Motion
  • How are speed, distance and time related?
  • How do you interpret/sketch a distance-time graph?
  • What is the definition of acceleration, and how do you calculate it?
  • How do you interpret/sketch a velocity-time graph?
  • How do you find distance travelled from a velocity-time graph?
  • Which equation of uniform acceleration do we need to know for AQA GCSE?
  • What factors affect stopping, thinking and braking distance?
  • Why is braking distance a more dominant factor than thinking distance?

    • Forces & Newton's Laws
  • What are "forces"?
  • What is meant by a "resultant" force?
  • What would happen to an astronaut that drifted away into space?
  • What is Newton's 2nd Law?
  • How does burning rocket fuel enable space shuttles to take off?
  • Why does a falling body reach a terminal velocity?

    • Momentum
  • Why is it harder to stop a train than a bullet?
  • How do you solve "explosions" momentum questions?
  • How do you solve "collisions" momentum questions?
  • How exactly do airbags, seat belts, and crash helmets protects us during an accident?
    Moments & Gears
  • What is a moment (turning force)?
  • What is the principle of moments?