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Reflection of Light
Plane Mirrors |
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Reflection of light from smooth and rough surfaces |
Notice there is no explanation of 'why' light reflects. i.e. what's going on at an atomic level | 4 Star | |
Image Distance = Object Distance |
Nice applet showing the the path taken by light as it reflects off the mirror. | 4 Star | |
| Slight variation on the above. | 3 Star | ||
| Simple diagram from absorblearning.com | 3 Star | ||
Shadows |
You can drag the light bulb and the kids around and watch the size of the shadow change. | 3 Star | |
To show angle of Incidence = angle of reflection |
Nice introduction | 4 Star | |
| An alternative illustration | Simple diagram from absorlearning.com | 3 Star | |
| Second law of reflection | Simple diagram from absorlearning.com; the plane in question is lightly shaded, perpindicular to the mirror. | 3 Star | |
| Labelled diagram including normal | Simple diagram from absorblearning.com | 3 Star | |
Spherical Mirrors |
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| Solar
Mirror
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Archimedes Mirror, also known as The Solar Death Ray! A look at some household objects 'nuked' by a solar mirror. Youtube. Two minutes. |
4 Star |
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| Using solar power to melt steelr. Youtube. Two minutes | 4 Star |
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| Ray Tracing | A nice and simple animation of the three main rays - you can move the object around | 4 Star |
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| For both Lenses and Mirrors. Double-click to switch from multi-rays to just the principle rays. | 5 Star |
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| You can use this for mirrors or lenses, concave and convex. Enter your values and study the rays | 4 Star |
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| Concave mirror or convex lens. You can't enter values (and it's a short focal length), but you can use a lightbulb or a collimated beam instead of an arrow. | 4 Star |
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| Irish-made, this has the nice bonus of showing the rays as they travel from object to mirror and then reflect off. | 4 Star |
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| The magnification formula | Nice animation which helps to explain a potentially confusing concept | 5 Star |
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| Real image | Looking at some applications of concave and convex mirrors. Youtube. Ten minutes | ||
| The mirage maker - pretty cool with the little piggy an' all, especially when you shine a light at the image. MyYoutube. Three minutes. | |||