Wednesday, July 18, 2012

Images!

Today we learned about images with mirrors and lenses. We learned about a whole bunch of characteristics. A real image is when light converges at one point, a virtual image is when light does not converge at an image, the image will apear inside of a mirror or lens. Upright is right side up while inverted is upside down in relation to an object. Also magnified is zoomed while reduced is zoomed out. We also learned about refraction which is changes in light due to changes in medium.


This is a picture of me wearing glasses which are lenses that change light and that allow me to see! In order to see something the light needs to bounce off of it and go back to your eye. An eye ball is a round lens or a converging lens. Converging lenses like glasses shift light from different directions so that the light will all converge at the exact point in your eye so that you can see. This bending is known as refraction or the changes in light due to changes in medium so when you change the medium (glasses) it allows the light to be directed into that perfect spot!

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