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Astronomy Olympiad Solar System — practice questions

Explore 22 free Solar System questions in Astronomy Olympiad Astronomy. Each question opens with answer choices, the correct answer and a worked solution.

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Solar System MCQs with answers

Showing questions 1–22 of 22.

A student lists Mercury, Venus, Earth and Mars together. This group is the:Read the answer and worked solution →A probe lands on a small rocky world close to the Sun. Such worlds are made mainly of:Read the answer and worked solution →Jupiter, Saturn, Uranus and Neptune are huge and are built mostly from:Read the answer and worked solution →One planet outweighs every other planet put together. That planet is:Read the answer and worked solution →Roughly how many Earths would fit inside the volume of Jupiter?Read the answer and worked solution →A textbook states distances in AU. One AU is the distance from the Sun to:Read the answer and worked solution →A student must find the density of a rock sample. She divides its mass by its:Read the answer and worked solution →Saturn's moon Mimas has a density close to that of water, so Mimas is mostly:Read the answer and worked solution →Two planets travel through space with no moon of their own. They are:Read the answer and worked solution →A beginner points a small telescope at the easiest planetary rings to see. They belong to:Read the answer and worked solution →Seen edge on, the orbits of all eight major planets lie in roughly the same:Read the answer and worked solution →Pluto's path around the Sun differs from the eight planets because it is not in their:Read the answer and worked solution →A category was created for Pluto and similar icy bodies past Neptune. It is:Read the answer and worked solution →The largest object in the asteroid belt is also counted as a dwarf planet. It is:Read the answer and worked solution →The first body beyond Neptune to be discovered, back in 1930, was:Read the answer and worked solution →Uranus is odd because its spin axis is tipped so far that it rolls along nearly:Read the answer and worked solution →A rock from space survives its fiery fall and lands in a field. On the ground it is a:Read the answer and worked solution →A geologist wants a rough age for a moon's surface. A simple method is counting its:Read the answer and worked solution →The Sun and planets formed together out of a spinning cloud of gas and dust called the:Read the answer and worked solution →Icy and rocky bodies that came before the planets and later built them are called:Read the answer and worked solution →In 1994 more than 20 pieces of a broken comet smashed into one planet. That planet was:Read the answer and worked solution →A spacecraft flew past the icy dwarf planet Pluto in 2015. The mission was:Read the answer and worked solution →

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