Starter quiz

  • Five yachts have a sailing race around the same course. Their completion times are shown. Starting with the fastest, put them in order of average speed.
    • 1
      ⇔
      1 hour 15 minutes
    • 2
      ⇔
      1 hour 19 minutes
    • 3
      ⇔
      1 hour 20 minutes
    • 4
      ⇔
      1 hour 28 minutes
    • 5
      ⇔
      1 hours 49 minutes
  • Which word is used to describe an object which has a decreasing velocity?
    • 'decelerating' ✓
  • An electric scooter has a maximum speed of 2.5 m/s. Calculate the maximum distance it can travel in 50 s.
    • 2.5 m
    • 20 m
    • 47.5 m
    • 52.5 m
    • 125 m  ✓
  • A satellite travels a distance of 10 800 km in 1 hour. What is the speed of the satellite in km/s?
    • 0.33 km/s
    • 3.0 m/s
    • 3.0 km/s  ✓
    • 180 km/s
    • 10 800 km/s
  • Which of these is the correct unit for acceleration?
    • m
    • m/s
    • m/s^2  ✓
    • m/s^3
  • A train speeds up from 2.0 m/s to 8.0 m/s in a time of 50 s. Calculate the acceleration of the train.
    • 0.04 m/s^2
    • 0.12 m/s^2  ✓
    • 0.16 m/s^2
    • 6.0 m/s^2
    • 8.3 m/s^2
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