As of now weve learned the elements of mechanics (displacement, etc.), forces, and now its time to learn about how to calculate the work done by exerting a force. Generally, when one thinks of work they think of working in an office or something similar. Well, when working in an office youre working to keep the company moving along in the business world. If they take a long break, the company stops or slows down progress. This is analogous to physical work; you can exert a force on a box and have it move, but when you stop moving pushing the box will stop. Work is the act of exerting a force great enough to move an object. This falls under the major category of mechanics: energy.
Work is the process of moving an object by applying a force. The object must move for work to be done, and the force must cause the movement.
Work is a scalar quantity. The units of work are joules.
Work is calculated as the integral of scalar product of the force vector with the differential of displacement. In one dimension, work is the area under the force vs. displacement graph.
The force from a spring is opposite the direction of its displacement from equilibrium, therefore it is a restoring force.
The slope of a graph of the force from a spring against its displacement from equilibrium gives you the spring’s “spring constant.”
The work done on an object changes the object’s energy.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book includes a comprehensive review of the key AP Physics C concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes 2 full length practice exams modeled on the real test, 3 separate plans to fit your study stle, review material updated to the most recent tests, and all the terms and concepts you need to know.