User:Kruhly/TestLesson2/Conclusion

Conclusion

Check Your Results

Reflection

You have finished your activity! Let's see how you did. How is an image formed using a converging (convex) lens? The image is formed when all the light rays emitted from the object converge in a single plane (sometimes called the image plane). Placing a screen at the image plane allows the rays to reflect away from the screen as if it were an original source of light. However, the image may be inverted and larger or smaller than the original object. When we look at the lens directly our eyes detect the light rays that travel in straight lines. So to us, our eyes tell us that the light begins its straight path from the image plane and thus it should be located there as well. Good work! You are well on your way to learning about imaging with lens.

Wrap Up

We would like to acknowledge the open source resources that we used in this activity. Without them this activity would not be possible.

• Physics Education Technology Team (PhET) at the University of Colorado for creating the Flash Simulation.
• OsterMiller.org for creating a web-based scientific calculator.

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