Preknowledge

Work in progress, expect frequent changes. Help and feedback is welcome. See discussion page.

Preknowledge

Preknowledge

Essential Light Rays Lens Principal (Optical) Axis Focus Focal Length Focal Plane Converging Lens Diverging Lens Click and Drag Optional Real Image Virtual Image Upright Image Inverted Image Thin Lens Equations Magnification

Multichoice Question

Multichoice Question

What is answer best describes the phrase "Click and Drag"? Add a Hint (a) A mouse trap snaps closed. The mouse walks away dragging the cheese. Incorrect, think about computer mice. (b) Navigate the cursor over the object you wish to move. Click and hold the (left) mouse button. Drag to object to the desired location. Release the mouse button. Absolutely correct!

Reflection

Reflection

For our purposes it is a computer related term. Thus choice (b) is the best answer.

If you are uncomfortable with the concept of rays, you should try this question.

Multichoice Question

Multichoice Question

Which one of the three diagrams below best represents a light ray? Light travels in a straight line unless it encounters a change in refractive index. (a) Incorrect, think about how light travels. (b) Incorrect, think about how light travels. (c) Absolutely correct!

If you are uncomfortable with the concept of lenses, you should try this question before moving on.

Multichoice Question

Multichoice Question

Which diagram below best represents a converging lens? A converging lens is convex in shape. (a) Incorrect, think about the shape of the lens. (b) Absolutely Correct!

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