Worksheets(Q3) 2-Stellar Nucleosynthesis
Total questions: 15
Worksheet time: 8mins
Which of the following is NOT an evidence of star formation?
Hydrogen
Helium
Infrared Radiation
Rocks
Which process produced Star’s energy?
combustion
decomposition
nuclear fission
nuclear fusion
Which of the following will star's evolve when reaches the end of red supergiant phase?
black hole
supernova
red super giant
white dwarf
These are the biggest stars in the universe.
main sequence star
red giant
red super giant
white dwarf
Which of the following gases are major components of star?
carbon and oxygen
helium and carbon
hydrogen and carbon
hydrogen and helium
Which of the following statements is FALSE?
The core of red giant star is made up of carbon.
The average star has shorter life span.
The more massive the star is the faster it burns its fuel.
No elements heavier than Iron can be produced in a massive star.
________________is the process by which elements are formed within stars.
Stellar Nucleosynthesis
Stellar Evolution
Star Formation
Supernova Nucleosynthesis
In main sequence star, Hydrogen fuses and converted to Helium and Helium is converted into ________ at its core.
carbon
iron
neon
silicon
This element is produced through Big Bang Nucleosynthesis second most abundant element in the universe.
carbon
helium
hydrogen
oxygen
Which of the following refers to the explosion of a star?
supernova
red giant
multiple-shell star
white dwarf
Who stated that we are made of star stuff?
Carl Sagan
Edwin Hubble
Galileo Galilei
Stephen Hawking
What is the sign that a protostar will transform into the next stage?
Protostar will transform when it starts to spin faster.
Protostar will transform when it starts to glow.
Protostar will transform when Hydrogen nuclear fusion begins.
Protostar will transform when it increases temperature igniting the
Hydrogen.
When does a star become unstable?
Star become unstable when it runs out of fuel.
Star become unstable when it contracts and expands.
Star become unstable when its core is converted to Iron.
Star become unstable when the outer shell of star is pulled by the
gravity from the center.
The formation of a star starts with the dense regions of molecular clouds. What force pulls matter together to form these regions?
gravitational force
electromagnetic force
coulomb force
nuclear force
This is a huge luminous ball of hot gas such as Hydrogen and Helium.
comet
moon
planet
star
