
Ramp Surfaces and Rolling Distance
Easy
Does the surface of a ramp change how far a toy car rolls? Smooth surfaces create less friction (the force that slows things down). Rough surfaces create more. This experiment measures the difference.
You build a small ramp 6 cm high and roll a matchbox car down it three times with no covering. Then you test three other surfaces:
- Sandpaper
- Wax paper
- Aluminum foil
The car rolled farthest on aluminum foil at 148 cm on average. Sandpaper produced the shortest distance at about 118 cm.
Hypothesis
The hypothesis is that a matchbox car will roll farther when the inclined plane is covered with wax paper than when it is covered with sandpaper or aluminum foil.
Method & Materials
You will make an inclined plane 6 cm high on the floor, roll a matchbox car down the inclined plane with nothing on the inclined plane, and record the distance it rolls. You will then cover the inclined plane with sandpaper, wax paper, and aluminum foil and repeat the experiment.
You will need a matchbox car, a measuring tape, wax paper, sandpaper, aluminum foil, and a data collection sheet.
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See what’s includedResults
The results showed that the car rolled the farthest when the inclined plane was covered with aluminum foil. This observation stands out because it was unexpected.
Why do this project?
This science project is interesting because it shows how different surfaces can affect how far and fast an object rolls.
Also Consider
Experiment variations to consider include testing different heights of the inclined plane and testing different objects.
Full project details
Additional information and source material for this project are available below.Related videos
These videos explain the science behind this project and demonstrate key concepts used in the experiment.
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