Flight & Space Lesson 3 - Key Terms

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Across
  1. 4. A fixed point in a material body through which the resultant force of gravitational attraction acts.
  2. 6. A vehicle capable of sustaining a person above the terrestrial atmosphere.
  3. 9. (NASA) Established in 1858 as the government agency responsible for the United States of America's space program and long-term general aerospace research. A civilian organization, it conducts or oversees research into both civilian and military aerospace systems.
  4. 11. A rille. Rilles are usually named for the craters they are close to. Example: Rima Cavendish is a rille that runs near the Cavendish crater.
  5. 13. Weightlessness.
  6. 20. Occurs when a rocket turns and flies into the wind during a launch.
  7. 21. The informal competition between the United States and the Soviet Union to launch unmanned satellites, sending people into space, and landing them on the Moon.
  8. 24. The arrangement of the natural and artificial physical features of an area.
  9. 26. The locus of all points in the plane at which the sum of the distances from a fixed pair of points is a given constant.
  10. 27. A voyage outside the Earth's Atmosphere.
  11. 28. A fixed or adjustable cane or airfoil affixed longitudinally to an aerodynamically or ballistically designed body for stabilizing purposes.
  12. 30. A rocket-launched spacecraft able to land like an unpowered aircraft, used for journeys between earth and craft orbiting the Earth.
  13. 33. (ISS) A joint project of the Canadian Space Agency (CSA/ASC), European Space Agency (ESA), Japan Aerospace Exploration Agency (JAXA), Russian Federal Space Agency, and the U.S.' National Aeronautics and Space Administration (NASA). The ISS represents a permanent human presence in space: it has been manned with a crew of at least two since November 2nd, 2000. The space station is located in an orbit around the Earth at an altitude of approximately 360 km, a type of orbit usually termed low Earth orbit.
  14. 34. A vehicle for driving over rough terrain.
Down
  1. 1. A chemical mixture that is burned to produce thrust.
  2. 2. A proposed explanation for an observation. An educated guess which forms a basis for a test.
  3. 3. A vehicle designed for space flight.
  4. 5. a state of very weak gravity
  5. 7. A fixed point in a material body through which the resultant force of gravitational attraction acts.
  6. 8. Large,dark plains formed by volcanic eruptions. Latin for "seas,"early astronomers thought these dark areas on the moon were filled with water. 16% of the monn's surface is covered in maria.
  7. 10. The path of an object moving through space
  8. 12. In the U.S., a person who rides in a space vehicle.
  9. 14. A long, narrow valley on the surface of the moon. These grooves or channels can be several kilometers wide and hundreds of kilometers long.
  10. 15. A vector quantity that includes the speed and direction of an object.
  11. 16. A path described by one body in its revolution about another.
  12. 17. A condition in which no acceleration from gravity or other force can be detected. Zero gravity.
  13. 18. A quantity with both magnitude and direction, such as velocity, acceleration, thrust, lift, drag, momentum, or torque.
  14. 19. The science of getting ships, aircrafts, or spacecrafts from place to place
  15. 22. A vehicle, missile, or aircraft which obtains thrust by the reaction to the ejection of fast moving exhaust from within a rocket engine.
  16. 23. The part of the universe lying outside of the limits of the Earth's Atmoshphere
  17. 25. Tunnels and caves formed by lava movement in the moon's distant past. These tubes can serve as shelter from meteorites, radiation, and extreme temperatures.
  18. 29. Fine, greyish dust and soil that covers the surface of the moon. Formed by constant pounding of the surface by impacts, the regolith can be between 2 meters and 20 meters deep.
  19. 31. Spacecraft operated by automatic or remote control, with no crew or personnel.
  20. 32. The mechanical coupling of two or more human made orbiting objects.