Ast 111 - Study guides, Class notes & Summaries

AST 111 Study test with Questions Solved 100% Correct| Verified

AST 111 Exam | Questions (Latest Update) with Verified Answers

AST 111 Test with Questions Solved 100% Correct

1 AU (astronomical unit) = correct answers Distance from Earth to the Sun (93 million miles) 1 LY = correct answers Distance light travels in space in one year = 6 trillion miles The Sun is located... correct answers about halfway between the center of the Milky Way and the galaxy's edge Why 360? 60 minutes? 60 seconds? correct answers Babylonians used a base 60 number system 24hrs per day comes from the ___________. correct answers Egyptians 1 arc second = correct answers 1/3600...

Io experiences tidal heating primarily because __________. correct answers Io's elliptical orbit causes the tidal force on Io to vary as it orbits Jupiter. As you learned in Part A, Io's elliptical orbit is necessary to its tidal heating. This elliptical orbit, in turn, is a result of the orbital resonance among Io, Europa, and Ganymede. This orbital resonance causes Io to have a more elliptical orbit than it would otherwise, because __________. correct answers Io periodically passes Europa...

Meteors vs Meteorites correct answers Meteors go earths atmosphere and glow due to the friction of air heating them up (a shooting star). If it large enough and hold together to survive its plunge all the way to Earth's surface, it is called a meteorite. Meteoroids correct answers Small particles throughout the solar system. Upon entering Earth, they are designated either as a meteor or a meteorite (depending on how far they go after entering the atmosphere) Meteorite Falls correct an...

What is a half-life? correct answers The amount of time it takes for a radioactive material to decay What similarities are there between Mercury and our moon? correct answers Craters, size, gray color What is the primary similarity between Mars and Earth? correct answers Riverbeds What is the primary similarity of ALL terrestrial worlds? correct answers Fe/Ni alloy core Do S waves or P waves travel through both solids and liquids? correct answers S waves Do S waves or P waves trav...

If star Alpha Centauri moved to 10 miles faster than it is now, the parallax angle would? correct answers get smaller What do you need to measure in order to determine a stars luminosity? correct answers Apparent brightness and distance Which of these stars clusters is oldest? correct answers A cluster whose brightest main sequence stars are yellow What two factors of info do you need for characteristics of stars? correct answers Its mass and it's stage of life Star A and B are iden...

AST 111 Exam Study Questions (Latest Update) with Verified Answers

Put the following into perspective: the size of our solar system; the distance to nearby stars; the size of the Milky Way Galaxy; the size of the observable universe. Rank from largest to smallest. To rank items as equivalent, overlap them. correct answers The observable universe, The Milky Way Galaxy, Distances to nearby stars, and The Solar system Light-year: correct answers The distance that light travels in 1 year, which is about 9.46 trillion kilometers. Astronomical Unit: correct an...