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15 Cards in this Set
- Front
- Back
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rocket
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a device that expels gas in one direction to move in the opposite direction.
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thrust
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the reaction force that propels a rocket forward.
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velocity
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speed in a given direction.
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orbital velocity
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the velocity a rocket must achieve to establish an orbit around a body in space.
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escape velocity
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the velocity an object must reach to fly beyond a planet's or moon's gravitational pull.
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satellite
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any object that orbits around another object in space.
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space shuttle
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a spacecraft that can carry a crew into space, return to Earth, and then be reused for the same purpose.
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space station
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a large artificial satellite on which people can live and work for long periods.
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space probe
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a spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew.
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rover
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a small robotic space probe that can move about the surface of a planet or moon.
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vacuum
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a place that is empty of all matter.
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microgravity
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the condition of experiencing weightlessness in orbit.
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space spinoff
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an item that has uses on Earth but was originally developed for use in space.
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remote sensing
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the collection of information about Earth and other objects in space using satellites or probes.
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geostationary orbit
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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.
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