# Scalar and Vector Quantities

- Created by: Jane
- Created on: 07-04-13 20:48

First 148 words of the document:

Scalars + Vectors:

A scalar quantity has size (magnitude) only

A vector quantity has size (magnitude) and direction

Example scalar and vector quantities include:

Scalar Vector

Length Displacement

Speed Velocity

Mass Momentum

Time Acceleration

Energy Force

Temperature

Vector quantities can be represented by arrows and by drawing vector diagrams

For vectors acting along the same line we take one direction as positive and one as negative

Resolving Vectors:

Any single vector may be represented by a horizontal and vertical component. We can then add the

horizontal vectors to find the resultant horizontal and the vertical components to find the resultant

vertical. The final resultant is the addition of these two components, the direction of the resultant

vector is the angle between a component of the vector and the resultant vector.

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