Exam 1 Flashcards

1
Q

electromagnetic radiation

A

the radiant energy released by certain electromagnetic processes (different forms of light and waves)

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2
Q

Who linked electricity with magnetism?

A

Hans Oersted

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3
Q

James Clerk Maxwell

A

speculated that electricity and magnetism often work together

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4
Q

Kinds of waves

A
Radio
microwave
infrared
visible
ultraviolet
x-ray
gamma
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5
Q

what is the only electromagnetic wave that the human eye can see

A

visible light

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6
Q

formula for light calculations

A

(c=fλ)

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7
Q

Gauss’ law

A

relates the distribution of the electric charge throughout the electric field

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8
Q

Gauss’ law of magnetism

A

there are no monopolies: where there is a south pole there is a north pole

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9
Q

Faraday’s law

A

says that any change to the magnetic environment can cause voltage to be induced onto a coil

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10
Q

Ampere’s law

A

describes that the magnetic field created by the electrical current is proportional to the size of the electric current

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11
Q

Solar Flares

A

occur when magnetic energy builds up in the solar atmosphere and is suddenly released

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12
Q

solar radiation

A

the energy that radiates from the sun in the form of electromagnetic waves

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13
Q

what kind of barrier does our atmosphere provide

A

ultraviolet light barrier

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14
Q

what kind of barrier does the magnetosphere provide

A

magnetic barrier

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15
Q

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

A

Aurora Borealis

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16
Q

why are different colors produced in the aurora borealis

A

Photons are released in the collision between the sun’s wind and our atmosphere

17
Q

How lightening works

A

an electrical current created by particles of ice that bump each other to make an electrical charge.

18
Q

what kind of cloud forms lightening

A

cumulonimbus

19
Q

When was the first nuclear weapon detonated?

A

July 16, 1950

20
Q

What was the name of the first nuclear weapon detonated

A

not on the slides

21
Q

Types of Nuclear reactions

A
Fission 
fusion
chain reactions
fissile/fissionable
critical mass
22
Q

What happens when a nuclear weapon detonates

A
bright flash
fireball
heat blast
shock wave
gamma rays
radioactivity
23
Q

nations with nuclear weapons

A

US, Russia, Britain, France, China, Israel, India, Pakistan, North Korea

24
Q

Nations hosting nuclear weapons

A

Belgium, Germany, Italy, Netherlands, Turkey

25
Q

Outcomes of Nuclear war

A

Nuclear winter
fallout condition
blast radius
radiation

26
Q

computer viruses used to try and prevent nuclear efforts

A

Stuxnet
flame
regin

27
Q

stuxnet

A

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.

28
Q

Flame

A

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

29
Q

Regin

A

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.