Exam 1 Flashcards
electromagnetic radiation
the radiant energy released by certain electromagnetic processes (different forms of light and waves)
Who linked electricity with magnetism?
Hans Oersted
James Clerk Maxwell
speculated that electricity and magnetism often work together
Kinds of waves
Radio microwave infrared visible ultraviolet x-ray gamma
what is the only electromagnetic wave that the human eye can see
visible light
formula for light calculations
(c=fλ)
Gauss’ law
relates the distribution of the electric charge throughout the electric field
Gauss’ law of magnetism
there are no monopolies: where there is a south pole there is a north pole
Faraday’s law
says that any change to the magnetic environment can cause voltage to be induced onto a coil
Ampere’s law
describes that the magnetic field created by the electrical current is proportional to the size of the electric current
Solar Flares
occur when magnetic energy builds up in the solar atmosphere and is suddenly released
solar radiation
the energy that radiates from the sun in the form of electromagnetic waves
what kind of barrier does our atmosphere provide
ultraviolet light barrier
what kind of barrier does the magnetosphere provide
magnetic barrier
Example of electrically charged particles are ejected from the sun causing gas atoms in the sky to glow that are attracted to the North Pole
Aurora Borealis
why are different colors produced in the aurora borealis
Photons are released in the collision between the sun’s wind and our atmosphere
How lightening works
an electrical current created by particles of ice that bump each other to make an electrical charge.
what kind of cloud forms lightening
cumulonimbus
When was the first nuclear weapon detonated?
July 16, 1950
What was the name of the first nuclear weapon detonated
not on the slides
Types of Nuclear reactions
Fission fusion chain reactions fissile/fissionable critical mass
What happens when a nuclear weapon detonates
bright flash fireball heat blast shock wave gamma rays radioactivity
nations with nuclear weapons
US, Russia, Britain, France, China, Israel, India, Pakistan, North Korea
Nations hosting nuclear weapons
Belgium, Germany, Italy, Netherlands, Turkey
Outcomes of Nuclear war
Nuclear winter
fallout condition
blast radius
radiation
computer viruses used to try and prevent nuclear efforts
Stuxnet
flame
regin
stuxnet
computer worm believed to be an American-Israeli cyber weapon used to sabotage Iran’s nuclear program. developed during Obama’s administration and made to create a long series of unfortunate accidents.
Flame
Form of malware (computer virus) that swept through Middle Eastern countries. was discovered in 2010 by accident. wipes hard drives and makes the system unbootable. Don’t know what country it’s from. Bigger than Stuxnet
Regin
disguises itself as legit Microsoft software and steals data by taking screenshots, copying passwords, and using the cursor. camouflaged and can be used on a device for years without detection.
