GCSE Physics (AQA)

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Speed & Fitness

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Forces Forces and motion

Speed & Fitness

3:01 Distance, Displacement and Speed
Spec 4.5.6.1.2
Previous Distance & Displacement Next Calculating Speed
  • Speed of walking, running, or cycling is influenced by various factors.
  • Fitness level impacts speed and endurance.
  • Regular exercise leads to stronger muscles, including the heart, and increased stamina.
  • Diet contributes to overall fitness.
  • Younger individuals are generally fitter than older ones.
  • Fitness declines with age due to weaker muscles and less efficient energy transfers.
  • Speed changes based on environment; rough terrain or uphill travel requires slower speeds.
  • Uneven ground and uphill travel slow down movement due to lack of rhythm and work against gravity.
  • Comparisons include track cycling vs. BMX cycling and pool swimming vs. open water swimming.
  • Sprinters travel faster than joggers due to shorter distances at higher speeds.
  • Example: 100m sprint world record vs. 10,000m run world record shows higher speed in sprinting.
  • Long-distance runners pace themselves to conserve energy over longer distances.
  • Engines are more efficient at slower speeds, allowing longer operation.
  • Important to remember factors affecting travel speeds for exams.

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