A) 50 miles B) 62 miles C) 100 kilometers D) 80 kilometers
A) Mesosphere and thermosphere B) Thermosphere and exosphere C) Stratosphere and mesosphere D) Troposphere and stratosphere
A) 2018 B) 1960 C) 2014 D) 2005
A) John B. McKay B) Neil Armstrong C) Yuri Gagarin D) Buzz Aldrin
A) Two B) Three C) Five D) Four
A) 90 km B) 80 km C) 50 miles D) 108 km
A) Roscosmos B) United States Federal Aviation Administration C) European Space Agency D) International Astronautical Federation
A) When a spacecraft orbits Earth at 150 km B) When a spacecraft reaches space but cannot achieve orbit due to velocity C) When a spacecraft flies below 50 km D) When a spacecraft exceeds 200 kilometers
A) Isidoro Martínez and Nicolas Bérend B) Jonathan McDowell and Thomas Gangale C) John B. McKay and William H. Dana D) Oscar Sharp and Olivia Colman
A) Radiation damage from the sun B) Excessive gravitational pull C) Lack of oxygen for the engines D) Frictional heating causing structural failure of materials
A) 80 km B) 100 km C) 150 km D) 125 km
A) 80 km B) 125 km C) 150 km D) 100 km
A) 50–80 km B) 30–60 km C) 70–100 km D) 100–130 km
A) University of Nebraska-Lincoln B) Federal Aviation Administration C) Harvard-Smithsonian Center for Astrophysics D) International Astronautical Federation
A) 80 km B) 125 km C) 150 km D) 100 km
A) British government B) Russian government C) U.S. government D) French government
A) 113 km B) 250 km C) 80 km D) 303 km
A) 80 km B) 303 km C) 113 km D) 250 km
A) 250 km B) 80 km C) 113 km D) 303 km
A) Jonathan McDowell B) Isidoro Martínez C) Thomas Gangale D) Oscar Sharp
A) William H. Dana B) Joseph Albert Walker C) John B. McKay D) Olivia Colman
A) She becomes a NASA astronaut B) She studies atmospheric drag C) She builds a suborbital spacecraft D) She suddenly starts levitating into outer space
A) 50 km B) 150 km C) 100 km D) 80 km
A) Oscar Sharp B) William H. Dana C) Joseph Albert Walker D) John B. McKay
A) It progressively becomes less dense with altitude. B) It ends abruptly at the Kármán line. C) It stops instantly where the thermosphere begins. D) It terminates at a solid physical barrier.
A) Exact mathematical constants B) Constant atmospheric pressure C) International maritime laws D) Technical considerations
A) Gravitational pull from the Moon B) Electrostatic atmospheric suspension C) Centrifugal force (Kepler force) D) Magnetic repulsion force
A) 1959 B) 1945 C) 1969 D) 1956
A) The exact altitude where outer space officially begins B) The maximum height achievable by rocket engines C) An inflection point where an aircraft's structure would fail D) A permanent boundary of zero gravity
A) Yes, but only in the conclusion section. B) Yes, they were the main focus of the paper. C) No, it never mentioned them. D) Yes, as a primary definition for flight limits.
A) Andrew G. Haley in a 1959 paper B) Wernher von Braun in 1958 C) Theodore von Kármán in 1956 D) Yuri Gagarin in 1961
A) X-15 B) Wright Flyer C) Bell X-2 D) SR-71 Blackbird
A) It was the point where radio waves ceased to propagate. B) It was the absolute limit of human survival without a suit. C) It was the maximum height parachutes could deploy. D) It was approximately the altitude limit for an airbreathing jet engine based on existing technology.
A) It was the exact altitude where satellites could maintain a stable orbit. B) It was the point where atmospheric pressure drops to zero. C) It was the lowest altitude at which free-radical atomic oxygen occurred. D) It was the maximum altitude for jet fuel combustion.
A) United Nations B) FAI C) ESA D) NASA
A) Theodore von Kármán B) Wernher von Braun C) Yuri Gagarin D) Andrew G. Haley
A) A complete vacuum B) A sudden and sharp cutoff C) A solid physical wall D) A rather gradual difference
A) 1970s B) 1940s C) 1960s D) 1950s
A) Cosmonautics B) Ballistics C) Aeronautics D) Astronautics
A) Aviation B) Meteorology C) Astronautics D) Aeronautics
A) An absolute physical limit B) A temporary seasonal marker C) A randomly chosen number D) A mean or "median" measurement
A) The final chapter B) The introduction C) The first chapter D) An appendix
A) Andrew G. Haley B) Yuri Gagarin C) Iven Carl Kincheloe Jr. D) Theodore von Kármán
A) 100,000 m B) 38,500 m C) 91,440 m D) 12,000 m
A) 98 percent B) 100 percent C) 2 percent D) 50 percent
A) Zero percent B) 98 percent C) 50 percent D) Two percent
A) 91,440 m B) 150,000 m C) 38,500 m D) 10,000 m
A) Aerodynamic lift B) Air resistance C) Magnetic force D) Inertia
A) The pilot B) Each country C) The United Nations D) No one |