9/23/08

Twisting Around

Honors Physics got a big face full of vectors today, but most people survived the experience. The graphical method of combining vectors is cumbersome and tedious, but it validates the "magic number" answers that you get when using trigonometry and will help you when we begin to draw free-body diagrams for analyzing forces. This activity demonstrated the tip-tail method for vector addition and the principle and the vectors can be added in any order and achieve the same resultant. Tomorrow, we will discuss the activity and the general principles of graphical analysis of vectors. If you borrowed a protractor from me today, remember to return it tomorrow.

Physics - due to picture day eating up E block yesterday, the test has been postponed one day. Tomorrow will be time for general review, so come with questions and issues that you would like to discuss in class. I will also have review problems ready for practice.

Physical Science - A final review of mathematics tomorrow and then the test on Thursday. EVERYTHING that we cover in the lecture, lab, textbook, etc. is fair game. This unit operated a great deal out of the note packet, rather than the textbook, so plan your study accordingly. Remember to bring your calculators and don't rely on me to be here early on Thursday morning to answer questions. Have questions ready tomorrow, so that you can use the answers to facilitate your studying on Wednesday night.

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