unit 5 topic 8

Question 1

what are some examples of dangers during space travel

Answer 1

explosive fuel, poor weather, human error, or even solar flares

Question 2

what is escape velocity

Answer 2

its where gravity must be overcome and to do so it must take a speed of 8km/ second

Question 3

what is the sputnik

Answer 3

the soviet union was the 1st to successfully orbit a satellite

Question 4

what is the vostok and who took it into space

Answer 4

Yuri Gagarin orbited the earth in Vostok 1.

Question 5

what is the freedom 7 and who is Alan Shepard

Answer 5

Alan Shepard became the first astronaut in space and to aboard he spacecraft

Question 6

what was the ultimate goal for project mercury

Answer 6

was to place and astronaut in orbit

Question 7

what is a suborbital flight

Answer 7

is one in which the spacecraft is boosted above the atmosphere and then falls back to earth without going into orbit

Question 8

who was the first person to make a full orbital flight

Answer 8

John Glenn

Question 9

what carried the first people on the moon

Answer 9

apollo 11

Question 10

what two space missions were join

Answer 10

apollo/soyuz and was the first international space mission

Question 11

what is the soviet system

Answer 11

its where there is 80% nitrogen and 20% oxygen at normal air pressure

Question 12

what is the american system

Answer 12

is where there is 100% oxygen releases at 1/3 air pressure

Question 13

what is the advantage of the soviet system

Answer 13

simple, minimal fire hazard

Question 14

what is the advantage of American system

Answer 14

less decompression issues

Question 15

what are the disadvatages of the soviet sytem

Answer 15

decompression dangers

Question 16

what are the disadvatages of the american system

Answer 16

fire danger, explosion

Question 17

what are the three main types of spacecraft’s in use

Answer 17

shuttles, space probes, international space stations, and the candarm

Question 18

why at is the use of the shuttles

Answer 18

transport personal equipment to orbiting spacecraft

Question 19

what is the use of space probes

Answer 19

carry instruments for exploration of space

Question 20

what is the use of internatioanl saoce stations

Answer 20

they orbit space centers for research and carry people

Question 21

what is the use of the canadarm

Answer 21

it retrieves satellites for use or repair, and it fixed the hubble telescope

Question 22

almost 100% of what should be recycled in the international space station?

Answer 22

water

Question 23

how does the international space station produce oxygen

Answer 23

electrolysis the hydrogen creates enrgy to create oxygen

H20 splits into hydrogen oxygen

Question 24

what are the greatest dangers in space

Answer 24

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.

Question 25

what is something dangerous that can happen to bones in space

Answer 25

they have less pressure on them and so they expand. They also lose calcium and become more brittle

Question 26

what can happen to the heart in space

Answer 26

the heart doesn’t have to pump as hard to circulate blood

Question 27

what can happen to muscles in space

Answer 27

weaken and shrink

Question 28

what is the space suit

Answer 28

it is a mobile chamber that houses and protects the astronaut from the environment in space

Question 29

where do we find astreroids in our solar system

Answer 29

in between mars and jupitar