Physics Classroom is making strides to make our site accessible to
everyone, and features many accessibility features.
Our site contains 6 navigation areas. The Primary, Secondary,
and Page Level navigations have a screen reader version of their nav
structure that allows using the left and right keys to navigate sibling
navigation items, and up or down keys to navigate parent or child
navigation items. The others can be navigated using tabs.
Within the main content, we leverage headers to provide in page or
in tool navigation.
Although we are still rebuilding our content to leverage these tools,
our images should have both short and verbose descriptions, the later
describing in great detail the image for those who cannot see. Any
formulas found within the images are often in the image figure below the image.
Equations and formulas are rendered using MathJax, which has both verbal,
braille (including nemath braille), and keyboard navigation within them.
Learn how to configure and leverage this for various screen readers on our
Equation Navigation Page.
While not every area of
Physics Classroom is usable purely from keyboard and screen reader, we
are committed to continue work on making this possible. If you have
questions or need additional help, please use
this link to
contact us
.
The Electrical Resistance Video Tutorial explains the cause and effects of resistance. The variables that affect resistance are described and the mathematical equation relating resistance to those variables is described.
The video lesson answers the following questions:
What is resistance?
What variables affect resistance and in what manner do they affect it?
Calculator Pad, Electric Circuits Problem Set, Problem #4 and #5
Improve your problem-solving skill with our Calculator Pad. You'll find problems, answers, and audio-guided solutions. Problems #4 and #5 pertain to the use of the Resistance equation from Slide 6.
Curriculum Corner, Electric Circuits Section
Our Curriculum Corner is composed of a collection of Think Sheets. Each one makes for a great component of any Lesson Plan. They work great for both independent practice exercises and cooperative group exercises. The following Think Sheet makes a great complement to this video: Electrical Resistance
Teacher Toolkits: Circuit Concepts
Try a Teacher Toolkit ... you might be very glad that you did. Each toolkit includes annotated links to vetted resources from across the web that we feel reliably support the specific topic. Give this one on circuit concepts a try.
Calculator Pad, Electric Circuits Problem Set, Problem #4 and #5
Improve your students' problem-solving skill with our Calculator Pad. The Calculator Pad includes problems, answers, and audio-guided solutions. Problems #4 and #5 pertain to the use of the Resistance equation from Slide 6.
Do you like the slides we used? They are available in our low cost Teacher Presentation Pack, along with other updated materials used in our presentation.