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Ramp Distance Measurement Experiment

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Ramp Distance Measurement Experiment

At the sailing club, Hugo, Freya and Losa are testing how far toy boats roll after leaving a ramp. Use the results below to practise measuring distance, converting units, calculating averages and interpreting data. Show working and include units.

The measurements

Each boat was released from the same point on the ramp. Distance was measured from the foot of the ramp to where each boat stopped. Results are in centimetres.

Boat

Trial 1 (cm)

Trial 2 (cm)

Trial 3 (cm)

Red

148

152

145

Blue

121

125

119

Yellow

167

160

164

1.Convert the Red boat’s Trial 1 distance to metres. Give your answer in metres.
2.Calculate the mean distance for the Red boat. Show the addition and division you used.
3.Which boat or boats had the greatest range across their three trials? Calculate each range (largest minus smallest) to support your answer.
4.Freya says the Yellow boat’s mean distance is 164 cm to the nearest whole centimetre. Is she correct? Work out the mean and explain briefly.
5.Put the three boats in order from shortest to longest mean distance. Use the unrounded means in your comparison.
100110120130140150160170180
6.Hugo wants to report the Red boat’s mean to the nearest centimetre. What should he write?
  • 148 cm
  • 149 cm
  • 148.3 cm
  • 150 cm
7.The tape measure has millimetre marks. How many millimetres is the Blue boat’s second-trial distance of 125 cm?
8.Losa notices the boats did not travel exactly the same distance each time. Give one measurement-related reason for the variation and one practical way to make the next set of measurements more reliable.
9.The club’s flat test track is 2.5 m long. The Yellow boat’s mean distance is about 163.7 cm. How much track remains beyond that distance? Give your answer in centimetres.

2 printable pages

  • Ramp Distance Measurement Experiment, page 1 of 2: The measurements

    Page 1

  • Ramp Distance Measurement Experiment, page 2 of 2: 5. Put the three boats in order from shortest to longest mean distance. Use the unrounded…

    Page 2

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