Starter quiz

  • Some swimmers compete in a 50m race. Their times are shown. Starting with the fastest, sort the swimmers in order of their speeds.
    Some swimmers compete in a 50m race. Their times are shown. Starting with the fastest, sort the swimmers in order of their speeds.
    • 1
      ⇔
      29.9 s
    • 2
      ⇔
      30.2 s
    • 3
      ⇔
      31.1 s
    • 4
      ⇔
      31.2 s
    • 5
      ⇔
      31.4 s
  • Which of the following are vector quantities?
    • distance
    • displacement  ✓
    • speed
    • velocity  ✓
    • mass
  • A rocket has a velocity of 200 m/s upwards. What distance will the rocket travel upwards in 30 s?
    • 6.7 m
    • 6000 m  ✓
    • 60 000 m
    • 3000 m
    • 600 m
  • A jogger runs for 250 s and they end up 625 m west of their starting point. Calculate the average velocity of the jogger.
    • 2.5 m/s west  ✓
    • 0.4 m/s west
    • 375 m/s west
    • 5.0 m/s west
  • Two trains are travelling in the same direction. Train A has a speed of 6.5 m/s and train B has a speed of 5.5 m/s. What is the relative speed of the two trains?
    • '1.0 m/s' ✓
  • An small airplane travels 45 km north in 30 minutes. Calculate the average velocity of the airplane in m/s.
    An small airplane travels 45 km north in 30 minutes. Calculate the average velocity of the airplane in m/s.
    • 1.5 m/s north
    • 22 m/s north
    • 25 m/s north  ✓
    • 1500 m/s north
    • 6.6 m/s north
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