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Physics Classroom
The Physics Classroom: Newton's Laws: Determining the Net Force
Students combine their understanding of acceleration and the fact that a net force causes an acceleration to determine whether or not a net force exists in several practice situations. After each problem, they are able to check their...
Physics Classroom
The Physics Classroom: Newtons Laws: Free Body Diagram Interactive
A skill-building tool that presents students with twelve situations for which they must construct free-body diagrams. Force arrows allow user to toggle the magnitude of the force. Feedback is immediate; opportunities to correct answers...
Sophia Learning
Sophia: Using Free Body Diagrams: Lesson 2
This lesson demonstrates how to use free-body diagrams to determine the net force acting on an object.
Sophia Learning
Sophia: Practice W/ Free Body Diagrams: Lesson 1
This lesson provides the learner with example problems on using free-body diagrams to determine the net force acting on an object. It is 1 of 2 in the series titled "Practice w/ Free-Body Diagrams."
Texas Education Agency
Texas Gateway: 4.3 Newton's Second Law of Motion: Concept of a System
By the end of this section, you will be able to define net force, external force, and system; understand Newton's second law of motion; and apply Newton's second law to determine the weight of an object.
Sophia Learning
Sophia: Practice With Inclined Planes
A video presentation providing example problems on finding the net force acting on objects at rest or sliding across inclined planes. [13:08]
Physics Classroom
The Physics Classroom: Newton's Laws
A four-lesson e-textbook covering topics in Newton's Laws. Tutorials include informational text,animations, interactive activities, and quick, interactive comprehension checks throughout the lessons.
Brigham Young University
World War I Document Archive: The War With Germany, a Statistical Summary
This lengthy document, written at the end of World War I, is filled with statistics pertaining to every facet imaginable of the United States' participation in World War I. The chapters look at the men who served, the munitions, battles,...
NASA
Nasa: Beginner's Guide to Aerodynamics
This site from NASA uses a colorful graphic to illustrate why objects reach terminal velocity. Provides equation for the terminal velocity of an object. Graphic is accompanied by a simple explanation.
Texas Education Agency
Texas Gateway: Work Energy Theorem
Using diagrams, illustrations, and relevant data, students will calculate the net work done on an object, the change in an object's velocity, and the change in an object's kinetic energy.
Physics Classroom
The Physics Classroom: Newton's Laws of Motion
Use this outline to find out about Newton's Laws of Motion. Use the different lesson plans covering the laws of motion to learn more.