Physics 121 Exam Notes

Physics Exam Notes

• The exam paper is for Physics 121, with a cover sheet that includes the student's name, section, and time.
• The exam includes questions that cover topics like vector analysis, motion, and velocity.
• Vectors have x and y components, and the magnitude is calculated using the Pythagorean theorem.
• The angle a vector makes with the x-axis is found using the arctangent function.
• The exam includes a v-t graph, where v represents velocity and t represents time.
• The area under the curve of a v-t graph represents displacement.
• The slope of a v-t graph represents acceleration.
• The exam also includes an x-t graph, where x represents position and t represents time.
• The slope of an x-t graph represents instantaneous velocity.
• The exam includes multiple choice questions requiring matching concepts to definitions.
• The exam includes a question about the time interval for which the acceleration is negative.
• The exam has a total of 10 points, with various point values assigned to each question.
• Free-response items require clear evidence of reasoning and supporting work to receive credit.
• Numerical answers should be given to two significant figures with appropriate units.