A student investigates a set of three toy gliders sliding down an inclined track.
The student uses this method to investigate the gliders:
The student uses the same method for gliders Q and R.
The table shows the student's results:
| Glider | Mass in g\text{g}g | Time in s\text{s}s: Test 1 | Time in s\text{s}s: Test 2 | Time in s\text{s}s: Test 3 |
|---|---|---|---|---|
| P | 24.5 | 8.2 | 8.0 | 8.4 |
| Q | 18.2 | 3.5 | 12.4 | 12.6 |
| R | 12.1 | 5.3 | 5.5 | 5.4 |
One of the time measurements in the table is anomalous. Identify this measurement.
State the relationship between average speed, distance moved, and time taken.
Calculate the average (mean) speed for glider Q.
Explain what type of graph the student should use to present their data.
Before carrying out the investigation, the student made this prediction:
'The smaller the mass of the glider, the faster it moves down the track.'
Discuss whether the student’s results support this prediction.
