unit 5 topic 8 Flashcards
what are some examples of dangers during space travel
explosive fuel, poor weather, human error, or even solar flares
what is escape velocity
its where gravity must be overcome and to do so it must take a speed of 8km/ second
what is the sputnik
the soviet union was the 1st to successfully orbit a satellite
what is the vostok and who took it into space
Yuri Gagarin orbited the earth in Vostok 1.
what is the freedom 7 and who is Alan Shepard
Alan Shepard became the first astronaut in space and to aboard he spacecraft
what was the ultimate goal for project mercury
was to place and astronaut in orbit
what is a suborbital flight
is one in which the spacecraft is boosted above the atmosphere and then falls back to earth without going into orbit
who was the first person to make a full orbital flight
John Glenn
what carried the first people on the moon
apollo 11
what two space missions were join
apollo/soyuz and was the first international space mission
what is the soviet system
its where there is 80% nitrogen and 20% oxygen at normal air pressure
what is the american system
is where there is 100% oxygen releases at 1/3 air pressure
what is the advantage of the soviet system
simple, minimal fire hazard
what is the advantage of American system
less decompression issues
what are the disadvatages of the soviet sytem
decompression dangers
what are the disadvatages of the american system
fire danger, explosion
what are the three main types of spacecraft’s in use
shuttles, space probes, international space stations, and the candarm
why at is the use of the shuttles
transport personal equipment to orbiting spacecraft
what is the use of space probes
carry instruments for exploration of space
what is the use of internatioanl saoce stations
they orbit space centers for research and carry people
what is the use of the canadarm
it retrieves satellites for use or repair, and it fixed the hubble telescope
almost 100% of what should be recycled in the international space station?
water
how does the international space station produce oxygen
electrolysis the hydrogen creates enrgy to create oxygen
H20 splits into hydrogen oxygen
what are the greatest dangers in space
cosmic and solar radiation and meteoroids because there is no atmosphere the temperatures in space have both extremes from extremely hot to cold. there is also no atmospheric pressure to help regulate the astronauts’ heartbeats.
what is something dangerous that can happen to bones in space
they have less pressure on them and so they expand. They also lose calcium and become more brittle
what can happen to the heart in space
the heart doesn’t have to pump as hard to circulate blood
what can happen to muscles in space
weaken and shrink
what is the space suit
it is a mobile chamber that houses and protects the astronaut from the environment in space
where do we find astreroids in our solar system
in between mars and jupitar
