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1) What is the name of our galaxy? a) Andromeda b) Milky Way c) Sombrero d) Cartwheel 2) How would we describe the orbit of a comet? a) circular b) slightly elliptical c) almost circular d) very elliptical 3) What do we call a big mass of dust and gas out in space? a) star b) galaxy c) nebula d) universe 4) What force pulls dust together to form a protostar? a) gravitational b) friction c) magnetic d) electrostatic 5) What must happen for a main sequence star to form? a) fusion of hydrogen must begin b) fusion of helium must begin c) star must expand and glow red d) star must shrink and glow white 6) What colour are the hottest stars on the main sequence? a) Red b) Yellow c) White d) Blue 7) What colour are the dimmest stars on the main sequence? a) Red b) Yellow c) White d) Blue 8) What is the absolute magnitude of the brightest main sequence stars? a) 15 b) 10 c) 5 d) -5 9) What does a small star turn into after the main sequence? a) Supernova b) Red giant c) Red super giant d) Black hole 10) What does a large star turn into straight after the main sequence? a) Supernova b) Red giant c) Red super giant d) Black hole 11) What is the end stage for a small star? a) Black hole b) White hole c) White dwarf d) Neutron star 12) What is the end stage of the very largest main sequence stars? a) Black hole b) White dwarf c) Black dwarf d) Neutron star

iGCSE Stars Recap

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