Physics First

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Physics First

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Conversions and Graphing Lectures

Simple Metric Conversions

This lecture describes how to convert within the metric system itself. It discusses the metric prefixes used in science, and how a simple movement of decimals allows for quick conversions. (NOTE: This does not cover scientific notation, something I do later in the eText).

Unit Conversion Using Dimensional Analysis

In this lecture, I discuss how to use dimensional analysis to convert metric units into their standard SI unit. This will work for any dimensional conversion, including Imperial units to SI

Graphing in Physics

In this lecture, I discuss some basic rules for making a line graph in Physics. This is largely if doing by hand, graphing by computer is better.

Slope and Vectors Lectures

Finding Slope on a Graph

In this lecture, I review the way to calculate the slope of a line graph, including how units fit in with the answer.

Simple Vector Addition

In this lecture, I discuss how to find the resultant of a set vectors that act along the x-axis and y-axis. This does not discuss if the set of vectors have any angle, but does discuss how the resultant can have an angle. Also, I do not go into the rules of trigonometry, but discuss how the trig simply works.

Complex Vector Addition

In this video, I discuss how to find the resultant of a set vectors that act along the x-axis and y-axis, and also includes vectors with angles.  Also, I do not go into the rules of trigonometry, but discuss how the trig simply works. The rules I apply are not the way it is typically done in a math class, but works well enough for what we do in basic physics.

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