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  • Work
    Learning Object
    Hoeling, Barbara
    We just observed how a convex lens bundles the light rays from the sun into a single bright spot. This means that a convex lens refracts light in a very special way, as this graphic will illustrate. It shows a lens from the side, and light rays coming . . .
  • Work
    Learning Object
    Hoeling, Barbara
    This is a collection of three animations describing the microscope and its history, detailing how it is setup and how a microscope is put together.
  • Work
    Learning Object
    Hoeling, Barbara
    In this interactive animation, you can rotate a laser beam and change the angle at which it hits a plane mirror. Move the laser around and observe what happens: as you change the direction of the incoming (or incident) beam, the direction of the refle . . .
  • Work
    Learning Object
    Hoeling, Barbara
    In this online learning tool, you can study how light rays are reflected from different types of mirrors: plane mirrors, spherical concave mirrors, and spherical convex mirrors. You will also learn how images are formed by mirrors, and what type of mi . . .
  • Work
    Learning Object
    Shen, Julie
    This AIM resource is an exemplar tutorial on how to create accessible online tutorials. Utilizing Adobe Connect, this AIM offers a behind the scenes tour on how to create online tutorials while adhering to common accessibility practices. Essentially, . . .
  • Work
    Learning Object
    Hoeling, Barbara
    We have seen in the last video how we can shift the focal point if we add a second lens to the original convex lens that is the model for our eye. This interactive animation lets you explore how to correct the vision problems of near sightedness and f . . .
  • Work
    Learning Object
    Selco, Jodye I.
    This is a "drop and drag" activity that lets you discover the organization of the periodic table and observe periodic table trends.
  • Audio
    Learning Object
    Hoeling, Barbara
    This is an audio file detailing how light rays get kinks. The audio is as follows: "Have you ever observed what happens when you stick a pencil in a glass of water, and then look at it from different directions? This picture shows you that the pencil . . .
  • Work
    Learning Object
    Hoeling, Barbara
    Here you have another principal ray diagram, just like the one we constructed on the previous page, only this one is interactive. You can click on the object and drag it, and observe what happens to the image. Notice that, as we saw on the previous pa . . .
  • Work
    Learning Object
    Hoeling, Barbara
    On this slide, you see a schematic of a principal ray diagram. By identifying two sets of similar triangles, we will be able to derive the thin lens equation. Let's first define the variables: i is the image distance, and o the object distance; f is t . . .