# 5.1: Two-Dimensional Vectors

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**At Grade**Created by: CK-12
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Color | Highlighted Text | Notes | |
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Term | Definition |
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Bearing |
Bearing is how direction is measured at sea. North is , east is , south is , and west is . |

Component notation |
Component notation is used to describe vectors algebraically in terms of their , and, if relevant, components. |

Distance Formula |
The distance between two points and can be defined as . |

force diagram |
A force diagram is a collection of vectors that each represent a force like gravity or wind acting on an object. |

initial point |
The initial point of a vector is where the vector starts, also known as the tail of the vector. |

Magnitude |
The magnitude of a line segment or vector is the length of the line segment or vector. |

Pythagorean Theorem |
The Pythagorean Theorem is a mathematical relationship between the sides of a right triangle, given by , where and are legs of the triangle and is the hypotenuse of the triangle. |

resolving |
The process of determining the components of a vector is known as resolving the vector. |

Scalar |
A scalar is a value representing only magnitude or size. Scalars can expressed with a single number. |

terminal point |
The terminal point of a vector is where the vector ends, represented by an arrow. |

Vector |
A vector is a mathematical quantity that has both a magnitude and a direction. |

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Description

Introduction to vector notation in two dimensions.

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Date Created:

Nov 01, 2012
Last Modified:

Mar 23, 2016
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