WorksheetsStar Life Cycle
Total questions: 20
Worksheet time: 9mins
Name
Class
Date
1.
The only force acting on the nebulae is ________.
a)
thermal
b)
singular
c)
gravity
d)
microscopic
2.
A star is born when ________________ begins to happen.
a)
nuclear fusion
b)
nuclear abrasion
c)
crying
d)
nuclear fission
3.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
4.
After a supernova, the core can collapse into a neutron star, or if massive enough even a ___________.
a)
Black Hole
b)
White Dwarf
c)
Brown Dwarf
d)
Black Dwarf
5.
When a Red Giant's outer atmosphere drifts away it is now known as a ____________.
a)
planetary cloud
b)
White Dwarf cloud
c)
planetary nebula
d)
expanding nebula
6.
More massive stars continue to fuse elements in their cores all the way up to ________.
a)
silicon
b)
iron (Fe)
c)
carbon
d)
plutonium
7.
A black hole is an object so dense with so much gravity that even ________ cannot escape.
a)
man
b)
bacon
c)
spaceships
d)
light
8.
a gigantic explosion that causes the death of a large star
a)
pulsar
b)
red giant
c)
supernova
d)
black hole
9.
The color of a star depends on its
a)
size
b)
temperature
c)
shape
d)
magnitude
10.
What color are the hottest stars?
a)
red
b)
yellow
c)
orange
d)
blue
11.
As our sun continues through its life cycle, it will _________.
a)
gradually get smaller and smaller until it dies out.
b)
Gradually get larger until its outer layers drift off.
c)
become denser and denser until it forms a black hole.
d)
become hotter and hotter until it becomes a blue hypergiant.
12.
All stars in the main sequence stage are fusing ________ into ________ in their cores.
a)
hydrogen into helium
b)
helium into carbon
c)
oxygen into iron
d)
helium into hydrogen
13.
What is the relationships between the size of a star and its lifetime?
a)
The larger the star, the shorter the lifetime.
b)
The larger the star, the longer the lifetime.
14.
What is the correct life cycle of a star like our Sun?
a)
Nebula, main sequence, red supergiant, supernova, black hole, neutron star
b)
nebula, main sequence, red giant, planetary nebula, white dwarf, black dwarf
c)
Main sequence, white dwarf, red giant, red supergiant, nebula
d)
Nebula, main sequence, brown dwarf, white dwarf, black dwarf
15.
Which stage do stars spend the majority of their lives in?
a)
Nebula Stage
b)
Main Sequence
c)
Red Giant Stage
d)
Dying stage
16.
Why won't our sun ever become a black hole?
a)
It is too massive
b)
It is too old
c)
It is too young
d)
It is too small
17.
This is an image of the formation of a star, also known as a ....
a)
Main Sequence
b)
Planetary Nebula
c)
Supernova
d)
Stellar Nebula
18.
what stage of the life cycle of a star is this?
a)
Planetary Nebula
b)
Black Hole
c)
Neutron Star
d)
Giant/Supergiant
19.
What determines if a star becomes a giant or a supergiant?
a)
star size
b)
star temperature
c)
star color
d)
star luminosity
20.
What is the location of fusion in a star?
a)
in the cloud
b)
on the surface
c)
in the core
d)
in the red cloud
100 %
