Data Analysis and Graphing Lab
Introduction
The purpose of this exercise is to learn some basic techniques of data analysis: conversion of units, plotting data, finding the slope of a graph, determining the units of the slope, using the units of the slope to determine the physical quantity the slope represents, and calculating the percent error of your results.
Instructions for Graphing
You are to use a graphing program such as Excel, or something similar to make your graphs.
Turn in all your graphs with this lab worksheet.
The graph needs to be titled as such, (First physical quantity vs Second physical quantity)
All graphs are to be plotted as y vs x.
The first physical quantity goes on the y – axis (Vertical).
The second physical quantity goes on the x – axis (Horizontal).
Each axis needs to be labeled by its physical quantity and with its units.
As an example, an axis representing displacement where the units of measurement are meters needs to be labeled as such: Displacement (m).
Add a trendline (also called a Best-Fit Line) on the graph itself.
Unless you are specifically told which trendline (best-Fit line) to use, use the one that best fits your data.
