Astronomyl 207l ASTRl 207l Midterml 2l

Astronomyl 207/l ASTRl 207l Midterml 2l Examl -l (Latestl 2026/l 2027l Update)l 100%l Verifiedl Questionsl &l Answersl |l Gradel A

Q:l Whatl isl thel differencel betweenl al boundl orbitl andl anl unboundl orbitl aroundl thel Sun?

A.l Al boundl orbitl isl anl orbitl allowedl byl thel universall lawl ofl gravitation,l andl anl unboundl orbitl isl not.b.l Anl objectl onl al boundl orbitl hasl al gravitationall attractionl tol thel Sun,l whilel anl objectl onl anl unboundl orbitl doesl not.c.l Al boundl orbitl isl circular,l whilel anl unboundl orbitl isl elliptical.d.l Anl objectl onl al boundl orbitl followsl thel samel pathl aroundl thel Sunl overl andl over,l whilel anl objectl onl anl unboundl orbitl approachesl thel Sunl justl oncel andl thenl neverl returns.

Answer:

d.l anl objectl onl al boundl orbitl followsl thel samel pathl aroundl thel sunl overl andl over,l whilel anl objectl onl anl unboundl orbitl approachesl thel sunl justl oncel andl thenl neverl returns.

Q:l Whichl ofl thel followingl representsl al casel inl whichl youl arel notl accelerating?

a.l drivingl 100l kilometersl perl hourl aroundl al curvel b.l drivingl inl al straightl linel atl 100l kilometersl perl hourl c.l goingl froml 0l tol 100l kilometersl perl hourl inl 10l seconds d.l slammingl onl thel brakesl tol comel tol al stopl atl al stopl sign

Answer:

b.l drivingl inl al straightl linel atl 100l kilometersl perl hour....

Q:l al netl forcel actingl onl anl objectl willl alwaysl causel al changel inl thel object's.....

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a.l momentuml b.l mass c.l speed d.l direction

Answer:

a.l momentum

Q:l newtonl showedl thatl kepler'sl lawsl arel

a.l seriouslyl inl error.b.l actuallyl onlyl threel ofl sevenl distinctl lawsl ofl planetaryl motion.c.l naturall consequencesl ofl thel lawl ofl universall gravitation.\ d.l thel keyl tol provingl thatl earthl orbitsl ourl sun.

Answer:

Q:l Supposel thatl al lonel asteroidl happensl tol bel passingl Jupiterl onl anl unboundl orbitl (welll abovel Jupiter'sl atmospherel andl farl froml alll ofl Jupiter'sl moons.)l Whichl ofl thel followingl statementsl wouldl bel true?

a.l therel isl nol wayl tol predictl whatl wouldl happenl bl .Jupiter'sl gravityl wouldl capturel thel asteroid,l makingl itl al newl moonl ofl Jupiter.c.l Jupiter'sl gravityl wouldl suckl inl thel asteroid,l causingl itl tol crashl intol Jupiter.d.l Thel asteroid'sl orbitl aroundl Jupiterl wouldl notl change,l andl itl wouldl gol outl onl thel samel unboundl orbitl thatl itl camel inl on.

Answer:

d.l thel asteroid'sl orbitl aroundl jupiterl wouldl notl change,l andl itl wouldl gol outl onl thel samel unboundl orbitl thatl itl camel inl on.

Q:l Whichl ofl thel followingl bestl explainsl whyl thel Moon'sl orbitall periodl andl rotationl periodl arel thel same?

a.l Thel Moonl wasl oncel closerl tol Earth,l butl thel forcel ofl gravityl gotl weakerl asl thel Moonl movedl fartherl away. 2 / 3

b.l Thel lawl ofl conservationl ofl angularl momentuml ensuredl thatl thel Moonl mustl havel thel samel amountl ofl rotationall angularl momentuml asl itl hasl ofl orbitall angularl momentum.c.l Thel equalityl ofl thel Moon'sl orbitall andl rotationl periodsl isl anl extraordinaryl astronomicall coincidence.d.l Thel Moonl oncel rotatedl faster,l butl tidall frictionl slowedl thel rotationl periodl untill itl matchedl thel orbitall period.

Answer:

d.l thel moonl oncel rotatedl faster,l butl tidall frictionl slowedl thel rotationl periodl untill itl matchedl thel orbitall period.

Q:l Whichl ofl thel followingl indicatesl thatl pastl conditionsl onl Marsl mayl havel beenl suitablel forl life?

a.l marsl hasl polarl caps b.l Marsl hasl twol smalll Moons,l Phobos,l andl Deimos.c.l Therel arel driedl upl riverbeds,l rock-strewnl floodplains,l andl mineralsl thatl forml inl water.d.l Therel arel veryl largel extinctl volcanoesl onl Mars.e.l Marsl hasl beenl studiedl byl numerousl spacecraft,l includingl bothl orbitersl andl landers.

Answer:

c.l therel arel driedl upl riverbeds,l rock-strewnl floodplains,l andl mineralsl thatl forml inl water.

Q:l Neptune'sl largestl moon,l Triton,l orbitsl inl al directionl oppositel tol thel directionl inl whichl Neptunel rotates.l Whichl ofl thel followingl isl mostl likelyl impliedl byl thisl fact?

a.l Tritonl experiencesl veryl strongl tidall forces.b.l Tritonl probablyl wasl capturedl intol orbitl byl Neptune.c.l Tritonl probablyl formedl inl itsl currentl orbitl aroundl Neptune.d.l Tritonl probablyl hasl al rocky,l asteroid-likel composition.

Answer:

b.l tritonl probablyl wasl capturedl intol orbitl byl neptune.

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