Wednesday, June 19, 2013

Quarter 1 Summary


Unit 1:
We worked a lot with pendulums, mainly to understand the concept making and interpreting graphs, like understand independent and dependent variables. We found the difference between accuracy and precision and covered the standard SI dimensions. We also memorized the different types of graphs, like the linear, square, square root, inverse and no relationship graphs.


Unit 2:
Unit 2 was the start of kinematics, which is the study of motion. The first main rule we learned was that all motion is relative. WE also learned about scalar and vector quantities which are like, distance and displacement. The difference between the two quantities is that scalar is a measurement that has magnitude but vector is a measurement that has magnitude AND direction.

We were then introduced to speed, velocity, distance displacement and acceleration. From this we learned how to interpret motion through words and describe and interpret motion using diagrams and graphs. The first grpah we learned about was the position vs. time graph. The first graphing rule we learned is: the slope of a position vs. time graph is the velocity. Next we covered velocity vs. time graphs. from these graphs we could determine the velocity of an object at any given time. The second and third graphing rule we learned is: the slope of a velocity vs. time graph is acceleration AND the area under the curve of a velocity vs. time graph is the distance traveled. After learning these two graphs and understanding them, we were able to use the data in one graph and translate into another.

Unit 3:
Unit 3 is where we put a lot of this information together. We learned about acceleration vs. time graphs and interchanged them with DT and VT graphs to have three coherent graphs. Now we can take all three types of graphs and interpret all of them. Then, we learned the three main kinematic equations which we call DAT, VAT and VAD. We learned how acceleration can be negative and nothing really decelerates, it just accelerates in the opposite direction.


A song that covers the basics of what we learned so far!

1 comment:

  1. Rachel, you're post was awesome. You put in so much information and I feel like this is great for a review of the quarter. I also really like your video haha its great !

    ReplyDelete