science space topic 2 Flashcards
who launched the first artificial satellite call sputnik
the soviet union
what was on board sputnik 2
a dog
when did the americans launch their own sattilite
1958
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what was the name of the first canadian satellite
alouette 1
whatare the three basic parts of the rockets
structural and mechanical
fuel
payload
what are ion drives
engines that use xenon gas instead of chemical fuels
what are solar sails
where they harness sunlight
when light energy hit the sail the energy transmitted which cause the spacecradt to move
what are the three main types of spacecraft in use today
shuttle
space probes
space stations
what enviromental hazards are there gonna be in space
cosmic rays, solar radiation, the risk of being hit by meteoroids, unimaginably cold to extremely hot, no gases to breath, no pressure to regulate our heartbeats
psyocolgical hazards in space
challenges to confined living
what is micro gravity
the condition in which gravitational forces that act on us are greatly reduced
what is geosynchronous satellites
satellites that are meant to stay in one position above earth
what are geosynchronous satellites used for
weather satellites
communication satellites
satellite tv
how many satellites signals do you need for personal tracking
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