EOSC - Lightning

I think some of the stuff that I took from the video is not actually needed for the class.

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Last updated: February 10, 2023

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First submitted	February 10, 2023
Times taken	14
Average score	64.9%
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Hint	Answer
thunderstorms have postive and negative ...	charges
creating powerful ...	electric fields
leaders	electrically conductive channels
they try to ...	neutralize charges
cloud flashes	within the storm
also called ...	intra-cloud lightning
ground flashes	connects to the ground
also called ...	cloud to ground lightning
aka ...	CG
return stroke	brightest flash
how CG lightning works	negative step leader
	positive leaders from ground
	one connects
	ions flow down
	return stroke
this whole thing is called a ...	flash
air around lightning ...	explodes
and makes a ...	supersonic shockwave
which then becomes an ...	acoustic wave
this is called ...	thunder
recoil leaders form on ...	decayed branches
from ...	positive leaders
negative leaders with ground	-CG
after return stroke, ...	multiple return strokes
causing ...	flickering
called ...	a multi stroke CG flash
initiate between ...	mid level negative
and ...	smaller positive region near base
positive leader with ground	+CG
occur from ...	higher positive region
return stroke is ...	hotter
	brighter
	longer
because of the ...	greater distance
and so are ...	more dangerous
percent of ground flashes	5-10%
also ...	lack of branching

Hint	Answer
causes ...	smooth channels
sometimes called ...	branchless lightning
also primary cause of ...	natural wildfires
bolt from the blue	lightning from far away
most are ...	negative
to make a spark you need about how many volts?	3 billion
lightning vs cars	faraday cage
where ...	electricity goes around
% of people who survive a hit	90%
lightning and trees	BAD
	exploding
	side flash
	ground currents
where is lightning?	florida
	central africa
detection networks	crowd sourced
	world wide
can use to find ...	storm direction
other detection	from space
from ...	weather satellites
which have ...	optical transient detectors
how to tell where lightning is	seconds between lightning and thunder
	divide by 3
lightning safety	30/30 rule
which is ...	30 seconds
means ...	30 minutes inside beyond storm
safe places	metal vehicle
	building
avoid	small structures
	metallic objects
	TREES
	water
	fields
	hills
if out in open ...	do the lightning safety crouch
where you have ...	feet together
	hands over ears

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