Journal 10/29

So, Jimmy believes that the green car is going faster because to the eye the green car looks as though it covered more ground at a faster pace, however, both the blue and the pink car were going faster. This is due to the fact that the blue and the pink car accelerate faster and actually get to their constant pace faster than the green car. While the green car covers more ground, he is actually slower in getting there then both the pink and blue cars. I agree with Brutus.

The graphs stop at seventeen seconds or so they appear to. What actually happened though is that the cars have reached a constant velocity. This graph is a velocity vs. time graph meaning that straight horizontal lines only add up to a constant velocity, not a stopping point. Had the graph been a position vs. time graph it would have been a stopping point.

journal 10/29

Journal 10/22

Richard generally did a good job on his graphs and both of them work as matching the motion of the car, the reasons his differs from all the others is that he is just observing from a different angle. Eva's graph works just as well as Richard's did she was just observing it from a different angle. Dorothy's graph was from yet another point of view making her's also correct, just from a different standpoint. No one graph was better than the others because there's a difference in the viewpoint from all of them.

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Journal 10/16

1. Some observers could use the scope test to see that Ryan is moving west. Describe where these observers are and what they would be doing.
2. Some observers could use the scope test to see that Ryan is moving east. Describe where these observers are and what they would be doing.
3. Some observers could use the scope test to see that Ryan is NOT MOVING. Describe where these observers are and what they would be doing.
4. If Ryan looks up from his phone while he's walking, does he see anyone moving east? Explain how he knows.

1. These obeservers will be sitting east of Ryan in the front part of the train looking back at him.

2. These observers will be sitting behind Ryan looking forward at him.

3. These observers would be ontop of Ryan of on his phone.

4. The people he's moving past on his left will appear to be moving east.

Journal 10/16

Ryan is walking westwardly down the aisle of the train that is moving towards the easy. So, actually, both Meagan and Beccy were right, but in different ways. He's moving east from the train underneath him, but west in the direction that he is walking. Megan is right because he is walking west, but Beccy is right because he's moving east.

Lab Activity: Bending Light

So my group got together to disprove Snell's law, or at least we wanted to see if what Shelia believed was credible at all. So, We were trying to test that if we shone a laser beam into the tank of water if the refracted ray would be equal to the refracted ray we would calculate later in the experiment.

We decided to take a fish tank filled with water and a little bit of flour, and a laser beam and a little bit of chalk. The first thing we did was calculate the the refracted ray under snell's law: sin^-1(1*sin(50)/1.33) which measured out to 36.17 degrees. We drew our reflected ray, our normal and our incident ray. After that we drew our projected refracted ray. We then placed the tank against the tank and shown the laser beam into the water to see if it would refract the predicted way. And by the end of the experiment, our prediction that they would line up was correct. We actually proved Snell's law again... i guess that is why it is Snell's law not Snell's theory