# Electromagnetic Spectrum Foldable by yurtgc548

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• pg 1
```									Electromagnetic Spectrum
Foldable
To begin….
Take a blank piece of unlined paper
– Fold it like a hotdog with a flap of about 1 inch
on the top
– Divide the flap into twelve equal sections,
You can fold the paper, instead of measure
On the flap…
Make lines on each measured section
– On the flap, write the wavelengths in m
– 10-16, 10-14, 10-12, 10-10…………until you run
out of lines
Open the flap….
On the same lines, but hidden by the flap
– Write frequencies
– 1024, 1022, 1020, 1018……..until you run out of
lines

The lines should have frequency and
wavelengths that are equal on them
– 10-16s-1* 1024m= 3.0*108m/s
On the leftover space inside…
E = h(m)
– E: energy (Joules)
– h: 6.626 x 10-34 Joules/Hz
- m : frequency (Hz or 1/second)
λ(m) = c
– λ : wavelength (meters or centimeters)
- m : frequency (Hz or 1/second)
– c = 3.0 x 108 m/s or 3.0 x 1010 cm/s
Also on the inside….
Put the wavelengths for visible light
– Red- 650nm
– Orange- 590nm
– Yellow- 570nm
– Green- 510nm
– Blue- 475nm
– Indigo- 445nm
– Violet- 400nm
On the outside of the flap…
Write the types of electromagnetic radiation with
their corresponding wavelengths
–   Gamma- typically < 10-12 m
–   X-ray- 10-9m -10-12 m
–   Ultraviolet- 400x 10-9m - 10-9m
–   Visible- 750 – 400x10 -9m
–   Infrared-10-3m – 750x10 -9m
–   Microwaves- 187 - 10-3m