
Maximizing Solar Energy
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Let's find out if the angle of the sun's rays affects the power produced by a solar cell. The hypothesis is that if the solar cell is placed perpendicular to the sun's rays, the power going to the cell will be maximized.
Hypothesis
The hypothesis is that if the solar cell is placed perpendicular to the sun's rays, the power going to the cell will be maximized.
Method & Materials
You will set up a fan and a solar cell on a board, then move the board to different angles with the sun and measure the voltage going to the cell.
You will need a solar cell, three boards, a fan, a voltage meter, string, two screws, and a protractor.
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See what’s includedResults
The results of the experiment showed that when the cell was perpendicular to the ground, the energy was 4/5 volts. When it was at a right angle to the sun, however, it measured 3/5 volts. At other angles, it measured from 0 to 4/5 volts. This data suggests that the hypothesis is not accurate.
Why do this project?
This science project is interesting because it explores the potential of solar energy as an alternative source of energy.
Also Consider
Experiment variations to consider include testing the effect of different types of solar cells on the power produced, or testing the effect of different weather conditions on the power produced.
Full project details
Additional information and source material for this project are available below.Related video
These videos explain the science behind this project and demonstrate key concepts used in the experiment.
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