This week we changed gears from just talking about light to more so angles and rays. We had a huge experiment this week that pretty much covered the week. The experiment was if you point a laser pointer at a certain angle on a protractor and it reflects off a mirror will the other ray be at the same degrees. The week we worked on the experiment and then create a lab report for it. Mr. Finley told us we needed 10 trials of different angles and see if it came out as the same angle. Which it did each time. I figured out a way that we don't even need to test it if we really wanted, too. If you wanted a short cut, say you want tho measure angle 130 degrees and see if it ends up on the same angle. You look at the protractor and on the left side it says 130 over 50 and on the other side it says 50 over 130. And those are both the same angle. Thats just if you want to take a short cut.
Towards the end of the week we started talking about what the particle model of light is. And the answer is if you draw a picture of a laser beam there are particles in the beam so that you can see the red beam. Those particles are called the particle model of light.
We learned two vocabulary words through the particle model of light discussion Photons and Transparent. Transparent means you can see through it, its clear. On the other hand Photons mean they are particles that are there own antiparticle and has zero rest mass and charge and a spin of one.
These were the science ideas we have learned this week and the real world application for this lesson could be if you need to see what the angle is of a ray of light you can use a protractor and a mirror to see than degree of the ray.
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