Question
Vocabulary
Questions 2
100
the gas that surrounds a planet or star.
What is a atmosphere?
100
a unit of mass equivalent to the mass of the sun. 1 solar mass = 1 msun = 2 x 1033 grams.
What is a solar mass?
100
the fundamental kinds of of atoms that make up the building blocks of matter, which are found on the periodic table of the elements.
What is elements?
200
a non-raiating ball of gas resulting from a white dwarf that has radiated all its energy.
What is a black dwarf?
200
a star is a sphere of gas held together by its own gravity.
What is a star?
200
a mutual physical force attracting two bodies.
What is gravity?
300
the uppermost level of a star's atmosphere.
What is a corona?
300
the ejection of gas off the surface of a star.
What is stellar wind?
300
a property of matter that prevents light from passing through it.
What is opacity?
400
the ratio between the mass of an object and its volume.
What is density?
400
everything that exists, including the Earth, planets,stars, galaxies,and that they contain; the entire cosmos.
What is a universe?
400
energy emitted in the form of waves or particles.
What is radiation?
500
a star that has a low surface temperature and a diameter that is large relative to the sun.
What is a red giant?
500
a star that has exhausted most or all of its nuclear fuel and has collapsed to a very small size.
What is a white dwarf?
500
the process in which atomic nuclei collide so fast that they stick together and emit a large amount of energy.
What is fusion?
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