Space Flashcards
What is a satellite
A satellite is an object that orbits another object
What is the moon
A natural satellite of the earth
As well as accelerating towards the ground at 9.8ms-2 what else does a satellite have
A horizontal velocity
What is a dwarf planet
A planet that can not clear the area around its orbit
What are astreoids
Rocky objects that orbit the sun
What is an exoplanet
A planet which is not in our solar system
What is the universe
The universe is all of the space and time and their contents
Name three benefits of satellite
Weather, GPS, communication
What is a geostationary satellite
A geostationary satellite stays above the same point on the earths surface, period of 24hrs and has an altitude of 36000km
The period of the satellite changes when?
When the altitude changes
3 challenges of manned space travel
Maintaining energy supplies, space radiation, weakness of gravity
How does the force of gravity change you
The pressure effects your body
What is another struggle of manned space travel
Re entry to the atmosphere
What is a light year
How far light travels in a year
What is a star
A star is a a huge body of energy made up of hydrogen and helium
