Vectors: Difference between revisions
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Written by Elizabeth Robelo | Written by Elizabeth Robelo | ||
==The Main Idea== | |||
A vector is an object with a magnitude and a direction. It is represented by an arrow. The length of the arrow is the vector’s magnitude and the direction the arrow points is its direction. The start of the arrow is called the tail. The end where the arrow head is located is called the head. | A vector is an object with a magnitude and a direction. It is represented by an arrow. The length of the arrow is the vector’s magnitude and the direction the arrow points is its direction. The start of the arrow is called the tail. The end where the arrow head is located is called the head. | ||
Vectors can be added and subtracted to each other. The tail of the vector. | Vectors can be added and subtracted to each other. To add two vectors you put them head to tail. The connecting arrow starting from the tail of one to the head of the other is the new vector. | ||
[[File:addingvectors.jpg|275px|thumb|center|'Adding vector A to B'']] | |||
To subtract two vectors reverse the direction of the one you want to subtract and continue to add them like shown before. | |||
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[[File:subtractingvectors.jpg|275px|thumb|center|"Subtracting vector B from A'']] | |||
===A Mathematical Model=== | ===A Mathematical Model=== | ||
Revision as of 02:02, 4 December 2015
Written by Elizabeth Robelo
The Main Idea
A vector is an object with a magnitude and a direction. It is represented by an arrow. The length of the arrow is the vector’s magnitude and the direction the arrow points is its direction. The start of the arrow is called the tail. The end where the arrow head is located is called the head.
Vectors can be added and subtracted to each other. To add two vectors you put them head to tail. The connecting arrow starting from the tail of one to the head of the other is the new vector.
To subtract two vectors reverse the direction of the one you want to subtract and continue to add them like shown before.
A Mathematical Model
What are the mathematical equations that allow us to model this topic. For example [math]\displaystyle{ {\frac{d\vec{p}}{dt}}_{system} = \vec{F}_{net} }[/math] where p is the momentum of the system and F is the net force from the surroundings.
A Computational Model
How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript
Examples
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Simple
Middling
Difficult
Connectedness
- How is this topic connected to something that you are interested in?
- How is it connected to your major?
- Is there an interesting industrial application?
History
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See also
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Further reading
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References
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