Science Project Summary:

How different angles of incidence of solar rays impact the performance of a solar cell.

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Difficulty: Intermediate 5
Cost ($): 60
Time required: < 1 hour
1 day to prepare, 1 hour for experiment
Required Skills: None
Safety concerns:

Exercise caution when sawing wooden blocks. Long hours of exposure to the sun may cause dizziness, dehydration or heat stroke. Make sure you drink an adequate amount of water and put on sunscreen. You should ensure that you protect yourself with an umbrella or wear a hat as you will be under the sun for a fair amount of time.

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This experiment was done to find out how changing the angle of incidence of sunlight throughout the day impacts the efficiency of a solar cell.
Procedure preview:
1. For this experiment, the independent variable is the angle of the solar cell. The dependent variable is the power output from the solar cell. This is determined by measuring the voltage and current produced. The constants (control variables) are the resistor, amount of sunlight, the temperature and the type of solar panel used. 2. The wooden blocks are cut with a saw in the workshop as shown in figure 1. The angles given below the drawings are measured using a protractor between the vertical line and the surface onto which the solar cell will be mounted. 3. This experiment .....