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Quiz #3 Quiz
Space Survival and History of Space Travel
| Question | Answer |
|---|---|
| Who came up with Rocket Science? | Konstantin Tsiolkovsky was the first person to come up with a Theory on how rockets should work. Tsiolkovsky actually NEVER built a rocket, although he understood how they would work. |
| Who is NASA? | NASA stands for National Aeronautics and Space Administration. NASA helped join together several space scientists for research on rockets. They created many rockets, including the famous Saturn V rocket, and Space Shuttle. |
| How do rockets work? | Rockets operate by Newton’s Third Law. For every action there is an equal and opposite reaction. (action force) Gases in the combustion chamber push exhaust fumes downward. |
| How do rockets work? | (reaction force) Gas at the top of the combustion chamber push the rocket upward. Thrust is the force that overcomes drag, gravity or resistance. Thrust is the force that accelerates a rocket. |
| What is LEO? | If a satellite is in the LEO orbit, they move very swiftly close to Earth and can orbit the entire Earth in 90 minutes The thin atmosphere of Low Earth Orbit is good for taking pictures; ex. weather,etc. |
| What is LEO? | The majority of artificial satellites are in LEO. Examples of LEO satellites are spy satellites , the ISS and the Hubble Space Telescope. The first satellite was Sputnik 1 on October 4, 1957. The International Space Station (ISS) is in LEO Orbit. |
| What is GEO? | In GEO, it is much slower and further away from Earth. The orbit period is the same as Earth’s rotation period. GEO satellites stay permanently fixed in the same position in the sky. Examples are DirecTV & DISH Network as well as weather satellites. |
| What are satellites? Where are they Located? | Satellites orbit Earth in either LEO or GEO LEO means Low Earth Orbit and GEO means Geosynchronous Orbit . |
| What is Probes? | Probes go to other planets and gather informations. They can stay in space until they die out, but the longest probe still in space is 30+ years old. |
| Probes carry scientific instruments (no people) in order to collect information about other planets, moons, asteroids and other bodies in space. Famous Probe Missions:Mariner - Mars Voyager – Solar System and Beyond Cassini – Saturn and Moons New Hor |
Created by:
Sabrina_thecool
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