Summary of Exam information (Copied from the College Board's AP Physics Course Description)
The AP Physics B Exam is 3 hours long, divided equally between a 70-question multiple-choice section and a free-response section. The two sections are weighted equally, and a single grade is reported for the B exam. The free-response question will usually contain 6 or 7 questions. Examples of possible formates are 2 questions of about 17 minutes each and 5 shorter questions of about 11 minutes each, or 4 question of about 17 minutes each and 2 shorter questions of about 11 minutes each. Some questions, particularly in the free-reponse sections, may involve topics from two or more major categories. For example, a question may utilize a setting involving principles from electricity and magnetism or atomic and nuclear physics, but parts of the question may also involve the application of principles of mechanics to this setting, either alone or in combination with the principles from electricity and magnetism or atomic and nuclear physics.
The mulitple-choice section emphasizes the breadth of the students' knowlege and understanding of the basic principles of physics; the free-reponse section emphasizes the application of these principles in greater depth in solving more extended problems.
For the multiple choice section of the exam calculators are not permitted. Any numeric calculations necessary will be kept simple. Students should be encouraged to develop their skills not only in estimating answers but also in recognizing answers that are physically unreasonable or unlikely. Students are given a Table of Information which includes values of some physical constants and conversion factors and states some conventions used in the exam.
For the free-response section of the exam students are allowed to use calculators and are given a Table of Information and tables of commonly used equations. The Table of Information includes values of some physical constants and conversion factors and states some conventions used in the exam. In scoring the free-response sections, credit for the answers depends on the quality of the solutions and the explanations given; partial solutions may receive partial credit, so students are advised to show all their work. Correct answers without supporting work may lose credit.
The International System of Units (SI) is used predominately in both exams. The use of rulers or straightedges is permitted on the free-response sections to facilitate the sketching of graphs or diagrams that might be required in these sections.
The Official Website for AP Physics B
The College Board's Site for AP Physics B. Download the Course Description(75 Pages) to learn almost everything about the course. Be sure to look closely at the Exam information on pages 15-19 (pdf pages 21-25) and the included sample multiple choice problems with answer key and sample free response questions that immediately follow. Also be sure to check out the content outline on pages 12-14 (18-20) and the percentages listed. These are the approximate percentages of the exam a given topic will represent.
http://www.collegeboard.com/student/testing/ap/sub_physb.html
The Official Physics Table of Information and Equations Tables for 2008/2009
Print one out to use in class. You only need to print out the tables for Physics B.
http://www.collegeboard.com/prod_downloads/ap/students/physics/physics_equation_tables.pdf