Skip to Content Go to sign in Skip to Primary Navigation Skip to Secondary Navigation Skip to Page Navigation Skip to Header Navigation Skip to Footer Navigation Read more about accessability options and our navigation

Physics Classroom is making strides to make our site accessible to everyone. 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. The Primary Navigation handles the first 2 levels of site pages. The Secondary (which is not always available) handles the 3rd and 4th level of structure. The Page level navigation allows you to navigate the current page's headings quickly. The Header Navigation contains the Light/Dark Mode toggle, Search, Notifications and account login. The Breadcrumb Navigation contains the breadcrumb of the current page. If the current page has a breadcrumb, you can get to it by skipping to the content and tabbing in reverse (shift plus tab). The Footer Navigation contains links such as Privacy, Contact, about and terms. Some resources contain an Audio Player that can be activated by holding down the T key for 3 seconds, and then using K to pause and resume. 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.

Return to screen reader navigation

Wave Addition

The Wave Addition Interactive provides the learner with a rich environment for exploring nearly all things that one might want to know about basic waves and their interference phenomenon. Study quantitative relationships and patterns between wavelength, frequency, speed, and amplitude. Compare longitudinal and transverse waves. Study constructive and destructive interference. Learn how a standing wave is formed. View beat patterns and manipulate them by altering the frequency of the interfering waves. These are just a few of the variety of things that you can do with this virtual wave environment. Launch it and explore.

Users are encouraged to open the Interactive and explore. For a more guided experience, The Physics Classroom has prepared an activity for use with this Interactive and encourages teachers to use it with their classes.

Learners and Instructors may also be interested in viewing the accompanying Notes page. Technical information, teaching suggestions, and related resources that complement this Interactive are provided on the Notes page. View Notes.

NEWOur Wave Addition simulation is now equipped with Task Tracker functionality. Learn more.

Return to Screen Reader Navigation