EPS SCI 9 (UCLA) Final Exam Prep Questions and Answers Best rated A+ Guaranteed Success Latest Update

What is the rotation period of Mercury (sidereal day)? - 59 Earth days How long is one solar day on Mercury? - 176 Earth days What is orbital period of Mercury? - 88 Earth days What is partially molten and takes up 75% of the diameter of its planet? - Mercury's core What planet is smaller than many moons in the SS? -Mercury What is the range of topography on Mercury like? - very small variety What planet has the most extreme temperatures in the SS? - Mercury (800°F to -350°F) What planet has the most eccentric orbit in the SS (besides Pluto)? - Mercury ___ Mercury day = ___ Mercury years - 1; 2 What is the spin orbit resonance of Mercury? - 3:2 What feature on Mercury points either towards or away from the Sun? - Caloris Basin What is the Caloris Basin? - a huge basin near the top of Mercury infilled with lava What is the Renior Basin? - a peak ring basin on Mercury that is larger than central peak cratersWhat does it mean when there is a ring-in-ring crater over a complex crater? - the impact was bigger What is the Tir Planitia? -a smooth plain on Mercury due to volcanism What is the Discovery Rupes? - prominent topographic scarp that is 2 km high and 650 km long What is a prominent feature of the Basho Crater? -dark material ejected around the crater (made of carbon and dark because inefficient at absorbing neutrons) What happened to Mercury as it cooled? - it shrank, which crates lobate scarps (pieces of crust folded over each other) When will you see Mercury on Earth? - at dusk and at dawn What does a partially molten core result in? - a magnetic field What is the relation of Mercury's compressed and uncompressed densities? - relatively the same What is the definition of sidereal day? - 1 rotation on the axis What is the definition of solar day? - sun directly overhead until the next time sun is directly overhead (longer than sidereal day) Where and why is there water ice on Mercury? - on the poles because they are always in the shade What is the "sister planet" of Earth? - VenusWhat is unique about how Venus rotates? - it is spinning "backward" because it was knocked upside down (possibly by collision) What element is Venus' atmosphere mostly made of? - CO2 (very thick