Welcome to the Source

The Physics Source is a collection of resources for introductory college level physics courses. It includes curriculum, curriculum support material, reference material, and pedagogical and physics education research inspired content.

The Source relies on you, the community of teachers, to expand and maintain its holdings.

Featured Item

Featured IntroPhys Resource

Lens (thick lens) and mirror
This applet allows the user to make a lens or a mirror and observe its effect on distant light. The user can change the thickness, the curvatures, the diameter, the index of refraction of the lens, and the index of refraction of the surrounding medium. Several special cases are pre-programmed and can be invoked by clicking on a link.
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Mystery Image

Mystery Physics Image

PER Feature

Featured IntroPhys Resource

Context Rich Problems
This web site provides information on the creation and assessment of "Context Rich Problems". These problems place physics in a real-world context to help students develop problem-solving skills.
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Latest Source Materials

Jun 30 Displacement, velocity, and frames of reference: Students' understanding and some implications for teaching and assessment
Jun 29 A mechanics baseline test
Jun 27 Guelph Physics Tutorials: Dimensional Analysis
Jun 27 Guelph Physics Tutorials: Significant Digits

This Day in History

1910: Giovanni Schiaparelli died in Milan, Italy. He excited imaginations world-wide after his (erroneous) observation of canals on Mars in 1877.
Source: Physics Infomall.