Physics 121 Exam Notes

What are the x- and y-components of the vector? Include the correct signs.

What is the magnitude of the vector?

What angle does the vector make with the +x-axis, in degrees?

How far does the object go in the time interval 1.0 s < t < 2.0 s?

Does the object ever change direction?

Match the following terms with their values:

For what time interval is the acceleration negative?

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.

Prepare for your Physics 121 exam with these detailed notes that cover essential concepts such as vector analysis, motion, velocity, and graphing techniques. Understand how to interpret v-t and x-t graphs, calculate magnitudes, and analyze acceleration. This guide will help you brush up on key definitions and concepts in preparation for the exam.