In order to examine the relationships between speed, velocity, and acceleration, a series of experiments was performed. The experiments used sliding blocks on frictionless air tracks and photogates for the experiment.

Experiment 1
An air track was setup at a 30° angle to the horizontal. A 1kg sliding block was placed at the top of the air track and began its descent from rest. It was allowed to fall to the end of the 1.5 meter track. The photogate, 0.5 meters from the bottom of the track, recorded the speed of the block.

Experiment 2
The air track was placed at a 30° angle to the horizontal. A 1kg block and a 2kg block were used for the experiment. The blocks were placed at the bottom of the track, propelled up the track at a uniform speed. The photogate recorded the time required for each block to leave the bottom of the track and fall back down.

Experiment 3
The air track was placed even with the horizontal. Three blocks were used with weights of 5 N, 10 N and 20 N. For each trial, two of the three blocks were placed at opposite ends of the air track. The blocks were then sent towards one another at the same speed. A photogate at each end of the track recorded the speed with which the blocks returned to the end of the track after collision.

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