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Physics

The Universe (Section 8)

QuestionAnswer
What is the universe? A large collection of billions of galaxies
What is a galaxy? A collection of stars
What force keeps stars in a galaxy together? Gravity
What are planets? Large objects that orbit a star
What are dwarf planets? Planets that aren’t big enough to be classified as a planet
What are moons? Objects that orbit a planet
What are the two kinds of satellite? Natural and artificial
Give an example of a natural satellite A moon
Give an example of an artificial satellite The International Space Station
What are asteroids? Lumps of rock and metal that orbit the sun
What are comets? Lumps of ice and dust that orbit the sun
What shape are the orbits of comets? Elliptical
The asteroid belt is a region of our solar system that contains millions of asteroids. Which two planets is the asteroid belt found between? Mars and Jupiter
Created by: JoeMather
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