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Cards In This Set
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A
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A
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What is Kepler's law? What units is it in?
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That P2= A3 P is in years and A is in austromomical units, they rotate in elliptically
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F=(GMm)/ R2 What does everything stand for?
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F= Force of gravitym= mass of one objectM= mass of another objectR= Distance between MG= Gravity constant
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(P/2Pi)2=A3/GM (used for Geosynchronous Orbit)
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P= orbital period and A=Semimajor axis
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What needs to be true for a spacecraft to escape orbit?
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Escape velocity is independent of rocket mass. Only depends on planet mass and radius
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A
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S
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What is an inclined orbit? What is Molniya Orbits?
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Orbits dealing with an angle, Moiniya orbit is multiple orbits that are flown into space at a certain angle
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Hohmann transfer????? #23 or 24
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????
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What is a gravational assist?
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Planet and space craft are moving toward each other. When they pass the spacecraft gets a boost that is twice the mass of the spacecraft
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A
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A
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What is a chemical rocket?
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Chemical rockets work by heating a gas through a chemical reaction. This gas is then expanded through a nozzle. It travels about 3 KM/S
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What is a solid propellant rocket?
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Fuel and oxidizer are mixed together to form a grain
Ignited used to start mixture burning
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How does a liquid propellant work?
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A chemical reaction
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How does a launch vehicle work?
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A rocket expels exhaust; since momentum is conserved the rocket moves forward.
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How does a hybrid rocket motor work?
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A solid fuel is used, but a liquid oxidizer is pumped into the thrust chamber where the solid fuel grain resides.
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