section 2 Flashcards
space shuttles
carries astronauts and eqipment to other crafts
satellite
orbits earth and transmits information
probe
robotic exploration where humans cant go
space station
living quarters for astronauts
newtons third law of motion
for every action, there is an equal and opposite reaction
environmental hazards of space travel
no air or water
no atmosphere for solar radiation and cosmic rays protection
can be hit by meteoroid
intense temp.
psychological hazards of space travel
being with the same people for a long time
knowing that you may not make it out alive
physical hazards of space travel
bones expand
heart weakens
muscle atrophy (weaken/shrink) from un-usage
what must be brought to space with astronauts when they leave the shuttle
air
water
heating systems
cooling system
portable toilet
why does is it so important to recycle water in space?
what should astronauts have in space to live?
astronauts can’t bring all the water they will need, so they have to reuse it
clean water, breathable air, comfortable air temp. + pressure, way to get rid of waste
how to satellites help us (on earth)
communicate, observe weather, track location, research earth surface, watch TV
microgravity
condition where the forces of gravity that act on objects is greatly reduced
