Notes

Name: Leonore Frauen Weisse.
House: Ravenclaw.

1. Describe briefly about wavelengths and how it affects colors or the light!
Answer: In physics, the wavelength is the spatial period of a periodic wave, or the distance over which the wave's shape repeats. It is commonly designated by the Greek letter lambda (λ).

Light visible to our eyes, known otherwise as "visible light" or simply "light", is usually defined as having wavelengths in the range of 400–700 nanometres (nm), between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). In terms of frequency, this corresponds to a band in the vicinity of 430–770 THz.

Visible wavelengths pass largely unattenuated through the Earth's atmosphere via the "optical window" region of the electromagnetic spectrum. An example of this phenomenon is when clean air scatters blue light more than red light, and so the midday sky appears blue. The optical window is also referred to as the "visible window" because it overlaps the human visible response spectrum.

2. What's Geomagnetic Storm? Describe it with your own terms!
Answer: A geomagnetic storm is a temporary disturbance of the Earth's magnetosphere caused by a solar wind shock wave that interacts with the Earth's magnetic field. It can cause electrical blackouts on a massive scale that might not be repaired for weeks, months, or even years. Thankfully, since we don't depend on electricity, we shouldn't be worried.

HOWEVER, highly intense solar flares release very-high-energy particles that can cause radiation poisoning. The penetration of high-energy particles into living cells can cause chromosome damage, cancer and other health problems. Large doses can be immediately fatal. Though, Earth's atmosphere and magnetosphere allow adequate protection at ground level.

3. What's the relationship between solar activity and the Aurorae?
Answer : Auroras are caused by the solar winds, a result of the Corona bursting out a stream of charged particles. It consists of mostly electrons, protons and alpha particles with kinetic energy between 0.5 and 10 keV.

These solar winds interact with the Earth's magnetosphere by feeding them electrons. The reservoir contains the radiation zones, and gets magnetically trapped temporarily, creating auroral particles that the human eyes can see.