Week 21

So this week, we took what we learned about centripical force the week before and applied it to astronomy. Our own Earth is in centripetal motion as we speak, always being pulled in by the sun, But the earth keeps trying to go straight. Thats why people mention the worries of the Earth losing its orbit around the sun, because the earth will just start going straight into some dark area of space. We also learned that the moon doesn't really orbit the earth... WHAT? Thats right, it doesn't. It goes around one side of the earth, and just goes right back again. Something we didn't mention, but I thought was important that I learned awhile ago is that since all objects have gravitational force, the moon does pull on the earth, which is the reason the ocean has low and high tide. The moon pulls the water on the earth, causing it all to move towards the middle of The ocean, away from the beaches, and then back again. We learned all about how the earth is on an axis, and that it is actually warmer on the earth when were farther from the sun, because the angle it is pointed towards. Over all this week was good for me and it was really interesting.

Week 20 (was not in class)

Week 19

This week we reviewed and learned more information on centripical force. We revised alot of the things we learned the week before. A very helpful test we did of centripetal force was when a fellow class mate was walking in the middle of the class, and the teacher kept pushing her away from the line she was walking on, just like how a person in a car will be pushed to the side of his car when he's turning. By this week, I understood all the standards and the only thing im having trouble learning how to measure the distance using the formula on the assesment, but I got over it. The physics behind centripical is really to understand, so it was fun learning it. It was also interesting learning it because I take the doors off on my jeep in the summer, and its nice to know what direction im going to fly out of my jeep when I turn. Another standard we learned was the different force needed to keep the object in motion while in centripical motion. Thats why when your in a car going around a track, being in tightest part of track would end up pulling the most G's, as oppossed to being on the outside of the track, where the least amount of force is being pushed on you. Some of the questions on the assesment did throw me off, I didn't read them correctly at first, like "what way did the PASSENGER go when the vehicle turned right" I just didn't read it correctly. Over all I liked this subject, and hopefully the next subject we learn will be similar.

Week 18

This week we learned about centripical force. I realize that was spelled wrong. I learned that this is the force that allows a spinning object to be pulled around by a string, and remain in the air by the force of which a counter weight on the end of the string and a person moving the string in a circle. It was really interesting to me on how a smaller radius of the string to weight will actually have a faster velocity than a larger radius, and that i t takes more force to allow a smaller radius to do a full rotation than a larger radius. Weird. We also learned about how when an object on the end of the string, and it is let go going a certain direction, it will fly in the direction of which it was intended to go. Its hard to explain, but if an object is being spun around counter clock wise, if it is let go when its at the north dorection, it fly towards the west direction because thats what way it was going. Another thing i found interesting and easy to understand is that although the object is going the same velocity, the acceleration changes. Since it is always going in a different direction (North west east south),its acceleration is changing. Acceleeation is either and change in velocity or direction. I found the assesment pretty easy, except for the last problems becuse they were almost like trick questions. I got the assesment back today and yeah, i didnt do well on the last questions, but i did well on the rest of them. Last thing, when the object is being flown around, the faster it is going, the more force it expells on the counterweight on the end of the string therefor it requires more force to hold the counter wights down (your hand).

Week 17

This was the final week before mid terms so we did some important reviewing. I beilive it was this week (this class is so interesting that i can never remeber what week we did the most fun activity) that we launched the rocket both horizontally and vertically off the roof. This test was very interesting because it showed that an object being launched upward and an object being lauched horizontally go the same dostance at the same time. I was the one who had to retrieve the rocket it and measure it, abd it turned out to be 150ft out. So that means the rocket went a 150ft high. Thats maybe is the reason people are able to measure how far a bullet can be fired upward without literally going up 10,000 ft in the sky. After that test, we began going over graphs and equations that not only apply to the unit were learning but the mid term, so it was really important to pay good attention this week. We also did a fun activity with some fluffy angry bird toys. We had to be able to drop a ball off a ramp and land on the angry bird that was on the ground in front of the ramp. It was a good test for me because it helped me practice being able to judge how far an object will move when being let go at a certain position I.E how to position the ball on the ramp. There wasnt really anything this week that confused me, in fact ifound myself raising my hand and correcting alot of people that had the wrong answer for a question Mr. Abud asked. A useful concept i learned from this week is how to position something, as said before. So if i ever want to time a water ballon drop from the top of my house to a unsuspecting victim below,Mr. Abud taught me how. All in all i think i can safely say that i understand almost every concept we learned this semester to a good extent, and i have faith that i have not forgotten any of it. I feel very confident about this mid term, so bring it. Im not scared. Well a little, but not enough to make me cry.

Week 14

This week we learned about how unbalanced forces act on a free falling object. We learned that no matter how much an object weighed, it will Fall at the same rate wither a lighter or heavier object. This was really interesting because i figured that a heavier object will always drop faster, but after dueig a test on Monday with a bowling ball and lacross ball, i learned that i was wrong. The next day we took an assesment on acceleration that went well, but i may have made some silly mistakes that could cost my grade. I felt tht doing an actual test outside was more helpful because i was constantly questioning weither the lessons we were learnong are ALWAYS correct. I question alot of stuff. We then began using acceleration Arrows, which are pretty much a dot with an arrow at the end and with each sorter arrow, it represented it was slowing down. If the arrows were longer than it indicated it was speeding up. I understood that pretty easily because it makes sense that the longer the arrow, the more distance has been traveled in the same amount of time. This week had alot to due with using the info we learned from an experiment to use it on a graph, which made it easier and more fun to do. Hopefully the next upcoming weeks, we do similar tests to furthur help our understanding of a unit. I didnt have any problems this week with anything, which is good!

Week 12.

Success! My groups bridge didnt break! This week we finally tested our bridge and it worked perfectly. After the testing of the bridge, we moved on to review. Our older units and refresh our memory on velocity. In our groups we white boarded force diagrams for all sorts of different scenerios. Force diagrams were overall pretty easy for me to understand. As long as all the concepts of how forces act on an object are understood, then the rest of the concepts are easy. We were introduced to a reading device that tracked the velocity of an object (car) dropped down the ramp and plotted its own graph for the info. It was really hard to keep the car straight amd the graph would always come up unaccuratly because of it. We had a sub in this week, and on tht day we had the biggest party ever. Completly insane, i cant even remeber it. We graphed and white boarded so much data that it blew my mind. Kidding, no party, but we stayed on task, white boarded some data that we were gathering from the worksheets given to us that week. Again, a very useful and simple to grasp concept week. Didnt really have any trouble with any thing, besides a little graphing but that was worked out. We were using our previous concept، velocity, alot through out this week to help graph our position vs time graphs. Alot of recapped info, but everything we learned in the beginning is now becoming very useful, not that it wasnt before, now its just more useful!