Navigation

To navigate through this course, you simply click one of the active "buttons" on your current web page to go to another web page. Examples of such buttons are given below:

Microsoft Windows Taskbar

The Microsoft Windows Taskbar is the toolbar normally located at the very bottom of your screen containing the Start button in the lower left corner of your screen. Near the middle of this Taskbar are buttons for every window of every application that you have opened (including a button for the window you are currently reading). By clicking the various buttons on this Taskbar you can toggle between any of your previously opened windows. You can easily leave the current window, perform some other task in some other window, and then return to this same window when you have finished with the other task. If you have two or more browser windows open at the same time, you can easily toggle back and forth between them by clicking the appropriate buttons on the Taskbar.

Browser Buttons

The following buttons near the top of your browser window may be useful in this course:

BACK - allows you to go back to the previously viewed page.
FORWARD - allows you to go forward after you have backed up.
RELOAD or REFRESH - allows you to update the screen (in case changes have occurred since you first viewed it).
STOP - allows you to stop loading the page (in case it takes too long).
HOME - allows you to leave the Modern Physics 1 course and return to the first page you opened when you started your browser.

Internal Navigation

Most of the links in Modern Physics 1 branch to other pages inside the course. The following buttons, typically found on each page, may be useful:

RETURN PATH - Across the top and bottom of this Navigation page are the two buttons ModPhy1/Introduction/ which specify the return path back down the current branch of the tree. These buttons allow you to return back to the previous Introduction page or all the way back to the Modern Physics 1 home page without having to back up successively all the way through the other pages you have viewed.
NEXT - At the top of this page (below the return path buttons to the left of the page title) and repeated at the bottom of this page (boxed in above the return path buttons) is a button labeled NEXT. Normally this is the location of a list of buttons that link the current page with the other pages you may want to see next. The top list is an abbreviated version of the links while the bottom list includes more descriptive information. If your current page contains no NEXT buttons you know that that page is at the end of a branch of the tree. For example, if you click the NEXT button on this page you will go to such a page.
IMBEDDED BUTTONS - Buttons imbedded within the text allow you to obtain background information, explore concrete examples, see visual illustrations, read discussion questions, practice solving problems, and/or take sample quizzes in order to obtain a better understand the subject. NEXT buttons are also imbedded in the text so you can branch immediately to those topics when they are first encountered rather than having to wait until later to view them or having to scroll to the top or bottom of the page.

External Navigation

Some of the links in Modern Physics 1 branch to pages outside the course. In principle, these branches open the door to the whole internet as a source of information for the course. In practice, they allow efficient enrichment of the course by branching directly to certain specialized information sources found on the internet.

A new window is always opened when the Modern Physics 1 course branches to an external site. Since the original window remains unchanged, you can easily return to the course at any time simply by closing the new window. In fact, you can toggle back and forth between the external site and the course itself simply by clicking the appropriate buttons on the Microsoft Windows Taskbar at the bottom of your screen. This allows you to perform tasks at the external site while following a set of instructions specified in the course. In this case, you may want to reduce both windows (by clicking the Restore button near the upper right corner of the appropriate window), size them (by dragging the lower right corner of the window), and place them side by side on your screen (by dragging the title bar at the top of the window). Then you can toggle back and forth between windows by simply clicking the appropriate window. And you can return to the dedicated, full-screen version of the course by closing the external window and maximizing the course window (by clicking the Maximize button near the upper right corner of the window).

Questions:

Q1. Which of the following navigation device is normally located at the very bottom of the monitor’s screen, contains the “Start” button on the left, and has another button for each application you have opened on your computer? (A) Microsoft Windows Taskbar, (B) Browser Buttons, (C) Course Internal Navigation Buttons, (D) External Navigation Links, (E) More than one of these.
A 41

NEXT - Next page of Navigation instructions.

ModPhy1/Introduction/