3B Scientific SEK Optics User Manual
Page 10
2
nd
experiment
1.
Attach a piece of white paper to the screen!
2.
Put the screen back to the end of the base plate and the cylinder as close to the screen as possi-
ble!
3.
Sketch the shape of the shadow on the white paper!
4.
First place the sharpener and then the eraser on the same spot and sketch each shape of the
shadow on a piece of white paper! Compare the shape of the shadows with the shape of the ob-
ject!
Analysis
Table
Height of the
shadow object
Length of the
shadow object
Height of the shadow
Length of the shadow
Observations when the shadow object is moved towards the optical light:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Observations when the screen is moved away from the shadow object:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Result
1.
Behind a . . . . . . . . . . . . . . . . . . . . . . . . object a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . develops.
2.
The shadow increases, when . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
The dimension of the shadow depends on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
The shape of the shadow depends on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELWE
Physical experiments for education in natural science and engineering
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SEG - OP 1.3
Shadows