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Space Quiz 2
pgs. 40-63 Space Race
| Term | Definition |
|---|---|
| rocket | a device that expels gas in one direction to move in the opposite direction |
| thrust | the reaction force that propels a rocket forward |
| velocity | speed in a given direction |
| orbital velocity | the velocity a rocket must achieve to establish an orbit around Earth |
| escape velocity | the velocity a rocket must reach to fly beyond a planet's gravitational pull |
| satellite | an object that revolves around another object in space |
| space shuttle | a spacecraft that can carry a crew into space, return to Earth, and be reused for the same purpose |
| space station | a large artificial satellite on which people can live and work for long periods |
| space probe | a spacecraft that carries scientific instruments that can only collect data, but has no human crew |
| rover | small robots that are sometimes released by probes to explore a planet's surface up close |
| vacuum | a place that is empty of all matter |
| microgravity | a feeling of weightlessness that astronauts experience in space |
| space spinoff | an item that has uses on Earth but was originally developed for use in space |
| remote sensing | the collection of information about Earth and other objects in space without being in direct contact |
| geosynchronous orbit | in which a satellite orbits Earth at the same rate Earth rotates and thus stays over the same place on Earth all the time |
Created by:
bpalumbi
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