Revise GCSE Physics


P3b Changing Speed

  1. How is constant speed shown on a speed-time graph?
  2. How is increasing speed shown on a speed-time graph?
  3. How is decreasing speed shown on a speed-time graph?
  4. What quantity is equal to the gradient of a speed-time graph?
  5. How are constant, increasing and decreasing accelerations shown on a speed-time graph?
  6. What is acceleration?
  7. What are the units for acceleration?
  8. How is acceleration calculated?
  9. What is the difference between a positive and negative acceleration?
  10. What effects can an acceleration have on the motion of an object?
  11. What is the difference between a vector and a scalar quantity?
  12. What is the difference between speed and velocity?
  13. What is relative velocity?
  14. How is relative velocity calculated?
  15. What does uniform acceleration mean?
  16. What happens to the shape of speed-time graph if the acceleration is non-uniform?
  17. What quantity is equal to the gradient of a speed-time graph?