Monday, February 3, 2014
We used the same car and had the same length ramp set at the same incline. Three people started and stopped their stop watch to measure the speed the car descended down the ramp. Each material had three trial runs. So which material made the car descend the slowest and fastest? Your choices: carpet, bubble wrap, sandpaper, oil on aluminum foil, wind blowing again it, weight added to it, or just the car on the ramp.