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8 Cards in this Set

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  • Back
Rocket
A machine that uses escaping gas to move
NASA
National Aeronautics and Space Administration; founded to combine all of the separate rocket-development teams in the United States.
Thrust
The force that accelerates a rocket
Orbital Velocity
The speed and direction a rocket must have in order to orbit the Earth
Escape Velocity
The speed and direction a rocket must travel in order to completely break away from a planet’s gravitational pull
Artificial Satellite
Any human-made object placed in orbit around a body in space
Low Earth Orbit
An orbit located a few hundred kilometers above the Earth’s surface
Geosynchronous Orbit
An orbit in which a satellite travels at a speed that matches the rotational speed of the Earth exactly, keeping the satellite positioned above the same spot on Earth at all times