WorksheetsStars - Life Cycles Pt 1
Total questions: 18
Worksheet time: 12mins
Stars are born inside of...
Nebulas
Supernovas
Black Holes
Singularities
In Nuclear Fusion....
Hydrogen is converted into Helium
Protons are converted into Electrons
Gas is converted into Dust
White Dwarves are converted into Red Giants
The main force acting on a nebula is:
thermal expansion
singularities
gravity
microscopic adhesion
Stars are made mostly of which two elements?
Hydrogen and helium
Hydrogen and oxygen
Nitrogen and helium
Nitrogen and oxygen
What is the heaviest element that can be created inside a star?
Silver
Iron
Carbon
Gold
What type of star is our Sun?
A very hot star
an average star
a cool star
It's not a star.
Which statement best describes a galaxy?
A cloud of gas that is the birthplace of stars
A system of billions of stars, gas and dust held together by gravity
A ball of plasma that experiences nuclear fusion in its core
A mass of dust and ice that orbits a star in elliptical pattern
Which statement about stars is correct?
Star formation begins in a nebula.
White dwarfs become main-sequence stars when they gain mass.
Supergiants are stars that can absorb black holes.
Main-sequence stars are formed by comets.
What is the first stage of the life cycle of a star?
The first stage is the first stage
Nebula
Star
Protostar
What does a star use to start nuclear fusion?
Hydrogen
Helium
Electrons
Neutrons
What is the heaviest chemical element that can be formed in nuclear fusion?
Silicon
Uranium
Iron
Astatine
What do stars use to sustain themselves?
Yes
Nuclear fission
Nuclear fusion
No
What element is going to be the final element produced by fusion in our sun?
Carbon
Magnesium
Helium
Sulfur
