In the Scroll Test, you are measured by how many pixels you can scroll with your mouse in one second. For example, if your speed in this test is 1000 pixels per second, that means you will scroll 10000px pages in 10 seconds. This wheel test is helpful for those who want to compare different mouse models or scroll speed settings. Fast scrolling is an essential skill for any computer user. It helps a lot in the day-to-day use of the computer and playing games. It is cool to be able to scroll through a large web page or Excel table in a few seconds, especially if you are unfamiliar with any keyboard shortcuts.