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Combined science (AQA Higher)
Measuring and calculating motion

Starter quiz

  • A pupil measures the time taken for different sports balls to travel 30 cm. Use the times to put the balls in order of decreasing speed, starting with the fastest.
    • 1
      ⇔
      ball D: 0.25 s
    • 2
      ⇔
      ball A: 0.28 s
    • 3
      ⇔
      ball B: 0.31 s
    • 4
      ⇔
      ball C: 0.34 s
    • 5
      ⇔
      ball E: 0.36 s
  • Which three of these equations show the correct relationship between average speed, distance travelled and time taken?
    • average speed = distance travelled ÷ time taken  ✓
    • average speed = distance travelled × time taken
    • distance travelled = average speed × time taken  ✓
    • time taken = distance travelled ÷ average speed  ✓
    • time taken = distance travelled ÷ average speed  ✓
  • What should be done with a single anomalous result in a set of five readings?
    • Change the value of the anomalous result to match the others in the set.
    • Repeat the test for the anomalous result and replace it with the new value.  ✓
    • Repeat the whole experiment from the start using different equipment.
    • Cross out the anomalous result and ignore it in any calculations.  ✓
    • Use the anomalous result in any calculations but not on the graph.
  • A pupil measures the time it takes for a car to pass between two street lamps as 5.0 s. If the car is moving at 8.0 m/s, how far apart are the lamps?
    • 3.0 m
    • 13.0 m
    • 1.6 m
    • 0.6 m
    • 40 m  ✓
  • Which of these is a correct definition of a scalar quantity?
    • A quantity with a very large value.
    • A quantity with a very small value.
    • A quantity that has a magnitude but not a direction.  ✓
    • A quantity that has a magnitude and a direction.
    • A quantity that always has a value of zero.
  • A tennis ball was released from a height of 20 m and took 20 s to fall to the ground. Which statements about the speed of the ball are correct?
    • The average speed of the ball was 10 m/s.  ✓
    • The instantaneous speed of the ball was the same throughout the fall.
    • The highest instantaneous speed of the ball was 10 m/s
    • The highest instantaneous speed of the ball was less than 10 m/s
    • The highest instantaneous speed of the ball was greater than 10 m/s  ✓
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