Light

Shadow

Shadow

Displacement of light is through a straight line.

Bron: http://vanbreemen.fortunecity.com/schaduw%20puntbron.jpg

The shadow of a point source

Draw in

Shadow

your notebook a lamp and a table.Determine the shadow.

What is wrong?

Light & Shadow

• 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

EXERCISE:Light & Shadow

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

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

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

In a broad light source a penumbra is created.

Light & Shadow

Light & Shadow

Explain how?

Draw in your notebook two lamps and a table.Determine the shadow of both lamps.

Light & Shadow

umbraPenumbra Penumbra

What happens when a broad light source?For example, a TL light ………???

Light & Shadow

umbraPenumbra Penumbra

What happens with the shadows of your hand if you keep it under a tl light with fingers spread?

Light & Shadow

The MoonLight & Shadow

An example of half shadow

Light & Shadow

lunar eclipse

Light & Shadow