WorksheetsAstrophysics
Total questions: 22
Worksheet time: 22mins
Which of the following is the evidence of the expansion of universe?
Blue shift
Red shift
Cosmic microwave background radiation (CMBR)
Supernova
What is the approximate position of giants in the shown HR diagram?
D
C
A
B
The nuclear reaction that takes place in the core of the stars is
Nuclear disposition
Nuclear fission
Nuclear fusion
Nuclear composition
Our sun in the milky way galaxy belongs to the main sequence stars of HR Diagram
True
False
Which of the following is the largest?
Planet
Galaxy
Satellite
Comet
Star
Which is the correct order for a star's life cycle?
Main sequence -> red dwarf -> white dwarf
Protostar -> main sequence -> neutron star -> Red giant
Main sequence -> red supergiant -> supernova -> neutron star
Red giant -> supernova -> white dwarf -> black dwarf
What is the reason a Main sequence star is so stable?
The number of atoms remain the same
The radiation pressure balances the pressure of weight/gravity
Magnetic forces within it hold it together
It has plenty of emotional support from it's friends
What is a comet?
Large rocky ball of ice that orbits the sun
Cluster of billions of stars
Lumps of rock or iron that orbit the sun
Minor planets
Which of the following are evidence for the big bang?
Cosmic microwave background radiation
Blue shift
Gravity
Black holes
Evidence that galaxies are moving away from us.
red shift of H spectrum
blue shift of H spectrum
background radiation
.blue shift of He spectrum
Any object that orbits another object.
Earth
elipse
star
satellite
The ____ states that universe began as an extremely hot, dense point.
Big Bang theory
Law of universal gravitation
Law of gravity
Theory of relativity
The force of gravity ____ as the mass of an object increases.
decreases
increases
remains constant
disappears
a star in which the electrons and protons have become bound is called a
supernova
neutron star
black hole
pulsar
