HEYYYYYYYYYYYYYYYYYYYYYZ.
I did my second round of the experiment last night,
which was more organised than the first round.
Why? Because I changed the method a bit after doing the first round.
To recap on the first round...
I only did one light bulb (60W) in the first round.
Some time after, I added in a 40W and 100W light bulbs in the method and equipment list, remember?
Okay anyways, last night, we thought we had all three types of light bulb readily
in our home.
However, we couldn't find a 40W light bulb, like ohmg.
So anyways, we found a 70W light bulb to replace 40W...
So I'm changing the method and equipment list to:
Equipments:
⚨ Solar Module 2.0 Volt 200mA (referred as "Solar Panel" in the method section)
⚨ 2 wires
⚨ Multimeter
⚨ Electric Lamp
⚨
⚨ Colour Filters (red, orange, yellow, green, blue, violet)
⚨ Dark room
Method:
1. Connect one wire from the positive pole of the solar panel to the positive pole of the multimeter.
2. Connect one wire from the negative pole of the solar panel to the negative pole of the multimeter.
3. Set the multimeter to measure the voltage.
4. Place the red colour filter in front of a
5. Place the solar panel at a distance of 120mm to the light bulb vertically above.
6. Observe the multimeter and record the reading shown.
7. Repeat steps 4 - 6 for the other 5 colours and also perform the same steps without any colour filter.
8. Set the multimeter to measure the current.
9. Repeat steps 4 - 7.
10. Repeat steps 4 - 9 with a 60W light bulb.
11. Repeat steps 4 - 9 with a 100W light bulb.
_________________________________________________________________
Oh btw, have I told you the team members of the SRP?
It's me and my dad.
Moving on,
I'm also gonna recap on the errors of the first round...
human errors:
1) connection of wires - used human hands to connect wires which caused trembling - therefore the readings shown on the multimeter kept jumping and cannot be kept constant.
2) filter might not have fully covered the lamp - because me and my dad swapped roles (holding the filters, and reading and recording results) halfway through the experiment because I felt sorry for the old man for holding it so long - therefore, experiment might not be consistent in its results.
systematic errors:
1) the accuracy of the multimeter - might be manufacturer's fault for producing dodgy quality - it's not certain if the readings the multimeter produce is accurate
2) solar panel's output of energy - may not be constant under the same amount of light energy - it's manufacturer's fault - nothing can be done about it, too bad.
BYEEEEEEEEEEEEEEEEEEEEZ
add a comment?
