U1Reading-graphmeth

U1Reading-graphmeth - Unit I Reading Graphical Methods One of the most effective tools for the visual evaluation of data is a graph The

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Unit I Reading – Graphical Methods One of the most effective tools for the visual evaluation of data is a graph. The investigator is usually interested in a quantitative graph that shows the relationship between two variables in the form of a curve. For the relationship y = f(x), x is the independent variable and y is the dependent variable . The rectangular coordinate system is convenient for graphing data, with the values of the dependent variable y being plotted along the vertical axis and the values of the independent variable x plotted along the horizontal axis . Positive values of the dependent variable are traditionally plotted above the origin and positive values of the independent variables to the right of the origin. This convention is not always adhered to in physics, and thus the positive direction along the axes will be indicated by the direction the arrow heads point. The choice of dependent and independent variables is determined by the experimental approach or the character of the data. Generally, the independent variable is the one over which the experimenter has complete control ; the
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/22/2011 for the course PHYSICS 204 taught by Professor Dr.lairdkramer during the Fall '11 term at FIU.

Page1 / 5

U1Reading-graphmeth - Unit I Reading Graphical Methods One of the most effective tools for the visual evaluation of data is a graph The

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online