CK-12 Foundation
Ck 12: Trigonometry: Vector Subtraction
[Free Registration/Login may be required to access all resource tools.] Learn how to subtract two vectors using the triangle method.
Physics Classroom
The Physics Classroom: Vectors and Projectiles: Vector Addition: 6 + 8 = ?
Become a student of physics and approach the task of adding vector quantities, which also include direction. See this head-to-tail animation which helps with the visualization of this concept.
Khan Academy
Khan Academy: What Is Centripetal Acceleration?
Learn what centripetal acceleration means and how to calculate it. Included are two example problems with solutions.
Khan Academy
Khan Academy: Friction Review
Review the key concepts, equations, and skills for friction, including how to find the direction and magnitude of the friction force.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Rational Numbers
A guide to support parents as they work with their students in rational numbers.
Wolfram Research
Wolfram Math World: Order of Magnitude
Definition and notation of the magnitude of a vector. Includes links to related sites.
Other
Sky Server: Color
SkyServer answers why stars have different colors and shows what you can learn by studying the colors of stars, galaxies, and other objects.
Other
Ceri: Earthquake Facts and Follies
A list of frequently asked questions about earthquakes. This is a good source for earthquake trivia and separating fact from fiction.
National Council of Teachers of Mathematics
The Math Forum: Vector Length
Describes how to use the Pythagorean Theorem to find the length, or magnitude, of a vector.
Other
Finding the Magnitude or Length of a Vector
From the Cambridge University Press book, "Maths: A Student's Survival Guide," this page describes how to find the magnitude of a vector.
Sophia Learning
Sophia: Introduction to Vectors & Scalars: Lesson 3
This lesson introduces the concepts of vectors and scalars and explains how they are related to distance and displacement. It is 3 of 3 in the series titled "Introduction to Vectors & Scalars."
Sophia Learning
Sophia: Practice Calculating Distance & Displacement: Lesson 1
This lesson should provided the learner with example problems on finding the distance and displacement of an object. It is 1 of 2 in the series titled "Practice Calculating Distance & Displacement."
Ducksters
Ducksters: Physics for Kids: Scalars and Vectors
Kids learn about scalars and vectors in the science of physics. Scalars are magnitude only while vectors have magnitude and direction. Examples and differences and how to draw a vector.
Michigan Technological University
How Are Earthquake Magnitudes Measured?
This website explains how the Richter and Mercalli Scales work.
Walter Fendt
Walter Fendt: Resolution of a Force Into Components
A short interactive activity which allows you to calculate the sum of two component vectors.