The Domino Effect 9-26-01 Abstract: In this experiment dominos were used to investigate how distance, time, and average speed is interrelated by maximizing the speed of falling dominoes. This was done by lining up 28 dominos up against a meter stick 0.5 cm, 1.0 cm, 1.5 cm, 2.0 cm, and 2.5 cm away from each other. Before the experiment the average width of a domino was taken. At the beginning of each of these 5 trials the dominos were lined up against the meter stick. The lengths of all the dominoes were taken so the average spacing distance could be taken. Then the dominos were tipped over, the time was recorded and placed on the data sheet.

For the first trial (0.5 cm) the length of all the dominoes were 29.1 cm. It took .32 seconds for the tow to fall, the average speed was 90.9 cm/s. For the second trial (1.0

cm) the length of all the dominos was 43.4 cm. It took .50 seconds for the row to fall. The average speed was 86.8 cm/s. For the third trial (1.5 cm) the total length of dominos were 57.3 cm. The row of dominoes took 0.75 seconds to fall for this trial. The average speed was 76.4 cm/s. For the fourth trial (2.0 cm) the total length for the dominoes were 69.7 cm. It took 1.00 seconds for the row to fall. The average speed was 69.7 cm/s. For the last trial (2.5 cm) the total length of the dominoes was 84.6 cm. It took 1.37 seconds for the row to fall. The average speed was 68.8 cm/s.

Introduction: This lab experiment involves the measurement of distance and time.

These two factors are very closely related because they are needed in order to find average speed, which is the...