When conducting the practical think carefully about the following:

1. What is the best position to record the time from?
2. What is the best way to release the ball so that you can drop it from the same position each time?
3. How many times to repeat readings?
4. Sow to spread out the readings (approximately) equally over the full range of heights?
5. How to ensure the tape measure is placed vertically?
6. What is the precision of the measuring tape? – Make sure you record to this precision.
7. What is the precision of the stopwatch? – Make sure you record to this precision.