Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a...
-
Upload
jesse-taylor -
Category
Documents
-
view
215 -
download
0
Transcript of Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a...
![Page 1: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/1.jpg)
Light
Shadow
Shadow
![Page 2: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/2.jpg)
Displacement of light is through a straight line.
Bron: http://vanbreemen.fortunecity.com/schaduw%20puntbron.jpg
The shadow of a point source
![Page 3: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/3.jpg)
Draw in
Shadow
your notebook a lamp and a table.Determine the shadow.
![Page 4: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/4.jpg)
What is wrong?
Light & Shadow
![Page 5: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/5.jpg)
• Estella walks alongside an old church. The church is lit by a spotlight.• Draw the shadow of the girl on the wall.
Exercise:Light & Shadow
![Page 6: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/6.jpg)
EXERCISE:Light & Shadow
![Page 7: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/7.jpg)
Exercise:• Adriaan (2.5 cm) and a pole (2cm) are under a
lamppost. On the floor is a shadow formation of Adriaan (1 cm) and a pole (1,5 cm). Adriaan is 5 cm from the post.Mark the position of the lamp.
Light & Shadow
![Page 8: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/8.jpg)
![Page 9: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/9.jpg)
A shadow is a place where little or no light falls.
What can you say about the shadow size, relative to the distance from the light source?
Light & Shadow
![Page 10: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/10.jpg)
Shadow size
Shadow size depends on:
1. The distance between the source and the object.2. The angle at which the lamp shines on the object.
Light & Shadow
![Page 11: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/11.jpg)
In a broad light source a penumbra is created.
Light & Shadow
![Page 12: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/12.jpg)
Light & Shadow
Explain how?
![Page 13: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/13.jpg)
Draw in your notebook two lamps and a table.Determine the shadow of both lamps.
Light & Shadow
umbraPenumbra Penumbra
![Page 14: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/14.jpg)
What happens when a broad light source?For example, a TL light ………???
Light & Shadow
umbraPenumbra Penumbra
![Page 15: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/15.jpg)
What happens with the shadows of your hand if you keep it under a tl light with fingers spread?
Light & Shadow
![Page 16: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/16.jpg)
The MoonLight & Shadow
![Page 17: Light Shadow. Displacement of light is through a straight line. Bron: 20puntbron.jpg The shadow of a point source.](https://reader036.fdocuments.net/reader036/viewer/2022062718/56649ebe5503460f94bc8d10/html5/thumbnails/17.jpg)
An example of half shadow
Light & Shadow