3. Results
Average speed when solar panel is 100% exposed: 9.4 seconds per meter
Average speed when solar panel is 90% exposed: 14.1 seconds per meter
Average speed when solar panel is 80% exposed: 0 seconds per meter
Average speed when solar panel is 70% exposed: 0 seconds per meter
Average speed when solar panel is 60% exposed: 0 seconds per meter
Average speed when solar panel is 50% exposed: 0 seconds per meter
Average speed when solar panel is 40% exposed: 0 seconds per meter
Average speed when solar panel is 30% exposed: 0 seconds per meter
Average speed when solar panel is 20% exposed: 0 seconds per meter
Average speed when solar panel is 10% exposed: 0 seconds per meter
Average speed when solar panel is 0% exposed: 0 seconds per meter
Average speed when solar panel is 100% exposed: 1.5 seconds per meter
Average speed when solar panel is 90% exposed: 2.2 seconds per meter
Average speed when solar panel is 80% exposed: 5.6 seconds per meter
Average speed when solar panel is 70% exposed: 0 seconds per meter
Average speed when solar panel is 60% exposed: 0 seconds per meter
Average speed when solar panel is 50% exposed: 0 seconds per meter
Average speed when solar panel is 40% exposed: 0 seconds per meter
Average speed when solar panel is 30% exposed: 0 seconds per meter
Average speed when solar panel is 20% exposed: 0 seconds per meter
Average speed when solar panel is 10% exposed: 0 seconds per meter
Average speed when solar panel is 0% exposed: 0 seconds per meter
Average speed when solar panel is 100% exposed: 0.8 seconds per meter
Average speed when solar panel is 90% exposed: 1.6 seconds per meter
Average speed when solar panel is 80% exposed: 4.7 seconds per meter
Average speed when solar panel is 70% exposed: 7.2 seconds per meter
Average speed when solar panel is 60% exposed: 0 seconds per meter
Average speed when solar panel is 50% exposed: 0 seconds per meter
Average speed when solar panel is 40% exposed: 0 seconds per meter
Average speed when solar panel is 30% exposed: 0 seconds per meter
Average speed when solar panel is 20% exposed: 0 seconds per meter
Average speed when solar panel is 10% exposed: 0 seconds per meter
Average speed when solar panel is 0% exposed: 0 seconds per meter
From the results gathered, it is shown that Car Design 1 travels slower than Car Design 2. This is because of the difference in volts of the solar panel on the difference toy car designs. Car Design 1 has a solar panel with lower volts compared to Car Design 2 who has 3 times the volt of Car Design 1. Car Design 1 has 2 volts in its solar panel while Car Design 2 has 6 volts in its solar panel. From the results shown, we can conclude that the higher the volt of the solar panel, the faster the current would be generated thus the faster in speed of the solar powered car.
From the results gather, it is also shown that the higher the light intensity, the faster the solar powered car would travel thus showing that more energy is generated when there is a higher light intensity. When we compare Graph 1 and Graph 2, it shows that Car Design 1 travels faster when under a higher light intensity. The same applies for Graph 3 and 4 for Car Design 2. Thus we can also conclude that the higher the light intensity compared to a lower light intensity, the faster and more efficient the energy would be generated.
From the results, it is also shown that the more exposed the solar panel is to the sunlight, the faster solar powered car would travel, the more covered it is and not exposed to the sunlight, the slower it would move and less energy would be generated. This is shown in the Tables as it shows that the fastest speed the solar powered car can travel is when the solar powered car is 100% exposed to sunlight compared to when exposed only 90%.
Thus all the results show that the higher the volt of the solar panel, the faster and more energy is generated to be converted into electricity.
The higher the light intensity compared to a lower light intensity, the more energy is generated to be converted into electricity.
The more exposed the solar panel is to the sun, the more solar energy it would absorb to be converted into electricity.
3.5 Special observations
During the experiment, some of the special observations made is that the position of where the cardboard piece affects the solar panel such that when a cardboard piece which can cover 30% of the solar panel is placed at the side of the solar panel, the toy car would still be able to run. However, if the cardboard piece is placed around the position of 1/3 of the solar panel, the solar panel would not be able to work.
Another special observation made was that when the cardboard piece is being cut out such that it will cover 10% of the solar panel vertically, the solar powered toy car would not be able to move. However if one cuts a piece of cardboard such as it will cover 10% of the solar panel horizontally and place it on top of the solar panel, the toy car would move, only difference is that it was moving at a slightly slower speed.
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