Details

Title: Astronomy Book Vocabulary

Description: Chapter 2

Total Flash Cards: 12

Created: 10/06/2008 12:25:48

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Additional Astronomy Flashcards

Cards in this set:

Term
rocket
 Definition
a device that expels gas in one direction to move in the opposite direction
Term
thrust
 Definition
the reaction force that propels a rocket forward
Term
velocity
 Definition
speed in a given direction
Term
orbital velocity
 Definition
the velocity a rocket must achieve to establish an orbit around a body in space
Term
escape velocity
Definition
the velocity an object must reach to fly beyond a planet’s or moon’s gravitational pull
Term
satellite
 Definition
an object that revolves around another object in space
Term
space shuttle
 Definition
a spacecraft that can carry a crew into space, return to Earth, and then be reused for the same purpose
Term
space station
 Definition
a large artificial satellite on which people can live and work for long periods
Term
space probe
 Definition
a spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew
Term
rover
 Definition
a small robotic space probe that can move about the surface of a planet or moon
Term
remote sensing
 Definition
the collection of information about Earth and other objects in space
using satellites or probes
Term
geostationary orbit
 Definition
an orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time