Last Blog Post

Hi. So I'm done. Yay! I have finally done my experiments! Ok, I found my biggest problem from my whole srp was the fact that it was impossible to find the materials for my second experiment, which was testing suncreen spfs. Many of the materials I needed I had to obtain from America. So a month before the project was due, I changed the topic for the last time to testing whether distance affects the light intensity of a point source. It went pretty well, and I had enough times to redo the experiment. Some errors that I came across throughout the experiment was the positioning of the light sensor. What I found was that when I dragged the stand I used in the experiment, 10 centimetres, the stand wasn't in exactly the same position it would have been in previously, it would have moved, a couple of centimetres to the left or to the right. This would have affected the readings as the sensor was taped onto the stand, and would have moved along with it. I would have liked to improve the experiment by using different point sources. Earlier this week, I came across a similar experiment to mine, but instead of using a light globe, it used a directed laser. Interestingly enough, the distance didn't seem to affect the intensity what so ever. It would have been interesting to investigate why different point sources may or may not have been affect by it. Oh well. It's over and done. I'm finished. that's all that matters currently.