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WorksheetsQuiz No. 1 Big Bang Model
Total questions: 20
Worksheet time: 20mins
What is the term referred to the process that creates new atomic nucleus from preexisting nucleons, primarily protons and neutrons?
nuclear fusion
nuclear reaction
nuclear synthesis
nucleosynthesis
What is the term referred to the process by which light nuclei fuse together to form a heavier nucleus?
nuclear fusion
nuclear reaction
nuclear synthesis
nucleosynthesis
It is a theory that explains that the universe started as a very dense and hot ”singularity ‘ which eventually cooled and began to form different particles?
big bang theory
cosmic inflation theory
oscillating theory
steady state theory
What was formed as the universe expanded and cooled down?
electron
proton
neutron
sub atomic particles
What is formed when there is a fusion of a proton and neutron in big bang nucleosynthesis?
deuterium
hydrogen
protium
tritium
What is formed when there is a fusion of two deuterium nuclei in big bang nucleosynthesis?
helium-3
hydrogen
neutron
one neutron and helium-3
What are the conditions in the universe so that a nuclear fusion could occur?
high energy
high energy and temperature
high temperature
moderate conditions
What is formed when there is fusion of deuterium and tritium?
Helium-2
Helium-3
Helium-4
Helium-4 and neutron
What is the term referred to form of an element that has the same atomic number of the original element but with different atomic mass or mass
number?
elements
heavy elements
isotopes
light elements
The following light elements were formed in the big bang nucleosynthesis?
H, He, Be, C
He, H, Be, Li
Li, H, He, Na
Fe, H, He ,Be
What is the term referred to the formation of heavy elements by fusion of lighter nuclei in the interior of stars?
big bang nucleosynthesis
nuclear fusion
stellar nucleosynthesis
supernova nucleosynthesis
What is the term referred to the process when there is a fusion of proton turning to neutron via beta-plus decay?
CNO
proton-proton chain
triple-alpha process
r-process
If an element is used by a star in fusion, it is sometimes called “burning” even though no actual combustion occurs. Which of the following processes is likely
to involve “carbon burning.”?
alpha ladder
CNO cycle
triple-alpha process
s-process
What is the process when alpha particle He-4 fused to heavy elements to form heavier elements?
alpha ladder process
big bang nucleosynthesis
CNO cycle
r-process
Most of the heaviest element were formed in the ___________?
main sequence star
red giant star
sun
all of the above
The heavy elements in the star are found in its ___________?
core
middle
outer part
all of the above
Different isotopes have...
different atomic numbers
different protons
different electrons
different masses
The top number in this isotope notation is
the mass number
the neutron number
the atomic number
the electron
This refers to the expansion of the universe.
recombination
Cosmic Inflation
Cosmic Microwave background
Redshift
The expansion of the universe means the expansion of ______________ in between galaxies.
galaxies
stars
sub atomic particles
space
