Today, we had both the non-linear motion test review due and the first quarter exam review packet. After we turned those in, we took the test, several people worked up to the bell, but Coats Haan said that the tests were going well before class ended. We had no homework, due to the fact that the next week we have exams, and we just took a test. The concept that I feel least comfortable about is writing operational definitions completely accurate.
Sunday, October 30, 2011
Friday, October 28, 2011
10/28 qod
What part of 1st quarter do you feel like you need to review the most for next week's exams?
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Thursday, October 27, 2011
Clyde 10/27
Today we turned in the HAC check and the blue sheet, which was worth 10 extra credit points if it hadn't been used to extend any assignments. We checked the homework from last night and then Coats-Haan went over a few of the tougher homework problems on the board. We got some time to finish our pair check from yesterday and turn it in, and then we used the rest of the time to work on the reviews due tomorrow. The two reviews are our only homework for tonight.
Also! Coats-Haan is having a review session after school tomorrow, so if you need some help before the exam, it is highly recommended that you attend. No material will be prepared specifically for the review session, but Coats-Haan is prepared to help people individually and answer any and all questions you may have about the material. You can also visit her at the beginning of the day to ask questions; the earlier you come, the more time you will have to get individual help.
QOD: In relative motion problems, we have to add vectors. How do you know when to use ROXY?
Vectors that are going in the same direction or opposite directions can be added together by simple addition and subtraction. Vectors that, together, form a right angle can be added together by using the Pythagorean Theorem to find the resultant, which is the hypotenuse of the right triangle that the vectors form. I would say that with any combination of vectors besides these special scenarios, it would be best to use ROXY.
Also! Coats-Haan is having a review session after school tomorrow, so if you need some help before the exam, it is highly recommended that you attend. No material will be prepared specifically for the review session, but Coats-Haan is prepared to help people individually and answer any and all questions you may have about the material. You can also visit her at the beginning of the day to ask questions; the earlier you come, the more time you will have to get individual help.
QOD: In relative motion problems, we have to add vectors. How do you know when to use ROXY?
Vectors that are going in the same direction or opposite directions can be added together by simple addition and subtraction. Vectors that, together, form a right angle can be added together by using the Pythagorean Theorem to find the resultant, which is the hypotenuse of the right triangle that the vectors form. I would say that with any combination of vectors besides these special scenarios, it would be best to use ROXY.
10/27 qod
In relative motion problems, we have to add vectors. How do you know when to use ROXY?
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Wednesday, October 26, 2011
10/26 qod
According to the compass on a plane, it is flying due north with an airspeed of 300 mph. A wind is blowing due east at 85 mph. Is the magnitude of the ground speed greater than, equal to, or the same as the air speed. Explain your answer.
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Tuesday, October 25, 2011
10/25 Bloomberg
Today in 3rd period physics everyone in class turned in their Dart Gun lab reports. Then we took notes on uniform circular motion which is when an object is moving around in a circle at a constant speed. We learned that an object moving in a circular motion is constantly accelerating because it is constantly changing direction. We also learned that frequency, f, is how many times the object goes around in a given time period. A period is the inverse of frequency and is how long it takes the object to move around the circle. Today Mrs. Coats- Haan and Hunter Miller had a lively discussion about Georgia Tech and Hunter's Georgia Bulldogs shirt, which lead to many other anecdotes about the intelligence of people in Georgia and Mrs. Coats- Haan's brief stint at Macy's. Once we got back on task everyone got out of their chairs and swung their arms in a circular motion. Mrs. Coats- Haan told everyone except for Michael Zimmerman to sit down. Using the length of his arm we did one of the example problems on the examples sheet. After we were done learning the lesson we did a pairs check about uniform circular motion with our lab partners. The homework for tonight was to read The Case of the Scientific Aristocrat and to do the worksheet that went along with it and to do pg 155 numbers 1-10 in our physics book. Also later in this week we have to turn in the HAC Check, our quarter review packet, test review and if we return our three test that we took this quarter we can earn extra points.
QOD: What does it mean when we talk about the number of g's?
Answer: The number of g's is an acceleration of an object divided by the acceleration due to gravity (9.8m/s^2). For example on our example sheet we found that the centripetal acceleration of Michael Zimmerman's arm when he swung it circularly was 112m/s^2. When 112m/s^2 is divided by 9.8m/s^2 we get -11.4 g's.
QOD: What does it mean when we talk about the number of g's?
Answer: The number of g's is an acceleration of an object divided by the acceleration due to gravity (9.8m/s^2). For example on our example sheet we found that the centripetal acceleration of Michael Zimmerman's arm when he swung it circularly was 112m/s^2. When 112m/s^2 is divided by 9.8m/s^2 we get -11.4 g's.
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