19

CHAPTER IV

PRESENTATION, ANALYSIS AND INTERPRETATION OF DATA

In this chapter, the researchers presented the results that arose from

the preliminary, follow – up and final experimentation. The researchers

comprehensively studied and thoroughly compared the pieces of information

acquired from the three attempts of testing the hypothesis. They also

showed the interpretation and significant implications that affected the

possible conclusions.

The tables show the response of the solar cell to the sun’s energy. It

also shows how long the radio can last without batteries and the charging

rate of the batteries at different sunlight strength.

Data Gathering

Table 4.1 Response of the Solar Powered Radio to the Sunlight

Trials Sunlight Radio Power

1 Strong 10 hours

2 Moderate 6 hours

3 Weak 3 hours

20

The table above shows that the strength of sunlight affects the power

of the radio. The stronger the sunlight, the longer the product’s life lasts. The

weaker the sunlight, the shorter the product’s life lasts.

Table 4.2 Charging Rate of Batteries at Different Sunlight Strength

Trials Sunlight Time of Charging

1 Strong 2 hours

2 Moderate 4 hours

3 Weak 5 hours

The table above shows that the strength of the sunlight affects the

charging rate of the batteries. When the sunlight is strong, the faster the

batteries charge. When the sunlight is weak, the slower the batteries charge.

ANALYSIS AND INTERPRETATION OF DATA

Based from the data that the researchers gathered, they conclude that

the strength of the sunlight affects the charging rate of the batteries and

how long the radio will last without the batteries.

21

1. Sunlight – The researchers think that the product should be exposed

directly to strong sunlight to make it function well, make the batteries

charge faster and make the power of the radio last longer.