Today in class we discussed that light is a straight line. This feature is key. What can we use to represent light? Representation means to symbol something or to take it's place. We
discussed that we can use straight lines to represent light. When we draw a straight line to represent a
lasers light, it shows 3 key components. It shows the
laser's path, is the path a straight line, and what does it hit. But, when we shine a real
laser we can only see light on the wall and we can't see the light anywhere else. So how do we represent how eyes see the
laser? Our hypothesis is that when we shine a
laser at the wall, the light bounces everywhere unless it's power runs out or an object obstructs it's path. Human eyes are light receivers but not light creators. When we draw light hitting the wall, we want the arrow to come from the source and end at the wall. When want to represent humans seeing the light, we draw lines going from the wall to our eyes not arrows coming from humans hitting the wall. Our next question was what really happens when we put dust particles into the air.
Our class discussed and said that when we put dust particles into the air, once the light hits the dust particle, the light will be able to bounce off the dust thus allowing us to see the light's path. Each dust particle is like a
miniature wall. The light bounces off of it. This brought up yet another question. Does the light really go everywhere or only to our eyes? Then, we were assigned to bounce a
laser on one side of a material near a corner and see if the light bounces off the wall onto the other
piece of material. Our hypothesis is that the
laser beam will bounce off any surface. We tested on wood, a
television screen, the table, and a wall. It did bounce off the wood, the television, wall, and the table. I predict that
when we bounce a
laser off of the wood, it will show up on the other side of the wood. Our conclusion is that when we bounce a
laser off any object near another object on an angle, a dim and faded light can bee seen on the other
piece of wall. Did we make any assumptions though? I
believe that an assumption we made was that we didn't test off every single material that we can test on. So, we should test this hypothesis with many different materials to see if we will get the same result as the result using only the objects we tested.
As you can see, the lasers travel in perfectly straight lines. I chose this photo because it was interesting to see that the
lasers are clearly visible even though the are not hitting a wall. We can see them in mid-air. So this can be one of two things. Either before the show, smoke or another form of dust was spread through the air or we found a different type of laser
ZK
As you can see, the lasers travel in perfectly straight lines. I chose this photo because it was interesting to see that the lasers are clearly visible even though the are not hitting a wall. We can see them in mid-air. So this can be one of two things. Either before the show, smoke or another form of dust was spread through the air or we found a different type of laser
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