WorksheetsAstronomy 5.3A
Total questions: 20
Worksheet time: 17mins
Name
Class
Date
1.
Which of the following best describes what a star is?
a)
A large ball of helium gas hot enough for nuclear reactions to occur.
b)
A large ball of helium rock hot enough for nuclear reactions to occur.
c)
A large ball of hydrogen gas hot enough for nuclear reactions to occur.
d)
A large ball of hydrogen rock hot enough for nuclear reactions to occur.
2.
Which of the following best describes a light-year?
a)
A year of light.
b)
The amount of light that shines in a year.
c)
The distance light travels in a year.
d)
None of these are correct.
3.
Inside a star the gas is pulled inward and becomes very hot. Nuclear reactions begin and the energy travels outward. When the energy reaches the stars surface it causes the star to......
a)
shine
b)
bang
c)
explode
d)
grow dark
4.
How fast does light travel?
a)
300,000 km/s
b)
30,000 km/s
c)
300,000 m/s
d)
30,000 m/s
5.
Since it takes time for light to travel which of the following is true about the stars we see?
a)
The star's light is brighter than we see.
b)
The star's light us dimmer than we see.
c)
The star is seen as it is now, not as it was.
d)
The start is seen as it was, not as it is now.
6.
What is the closest star to our sun?
a)
Aldebaran
b)
Proxima Centauri
c)
Sol
d)
None of these are correct.
7.
Scientists use this to categorize stars and tell how hot they are.
a)
their distance from Earth
b)
their color
c)
their size
d)
their sound
8.
Can a solar system have more than one star?
a)
yes
b)
no
c)
None of these are correct.
d)
All of these are correct.
9.
When a solar system has two or more stars, neither one is the center. What happens then?
a)
The two or more stars collide and explode.
b)
The two or more stars spin off into space.
c)
The two or more stars burn up all the planets.
d)
The two or more stars orbit the system's center of mass.
10.
These kind of stars change their brightness over time.
a)
flickering stars
b)
on and off stars
c)
variable stars
d)
None of these are correct.
11.
How was the sun created according to the bible?
a)
On the third day, God made the greater light to govern the day.
b)
On the third day the light was burned out.
c)
On the third day, God made the lesser light to govern the day.
d)
None of these are correct.
12.
This is a huge collection of stars, gas and dust.
a)
a solar system
b)
a gas giant
c)
a gas system
d)
a galaxy
13.
This type of galaxy is shaped like a basketball or football. They contain older, redder stars. They have little gas or dust. Since they contain little gas and dust, galaxies contain few young stars.
a)
elliptical
b)
irregular
c)
spiral
d)
None of these are correct.
14.
This type of galaxy is oddly shaped. They contain large amounts of gas and dust. They have a high rate of star formation. galaxies have many young stars and do not have bright centers.
a)
elliptical
b)
irregular
c)
spiral
d)
None of these are correct.
15.
This type of galaxy is shaped like a disk. It contains dust, gas, and young stars in their bluish arms. Older, redder stars are in the central bulges. galaxies are surrounded by spherical halos containing older stars.
a)
elliptical
b)
irregular
c)
spiral
d)
None of these are correct.
16.
Our Universe is made up of galaxies. These galaxies are pulled by gravity into clusters. Our cluster is called the.....
a)
Neighborhood Group
b)
Local Group
c)
Outside Group
d)
Inside Group
17.
Which of the following describes a supercluster?
a)
Some of the largest structures in the universe. They are large groups of galaxies.
b)
Some of the smallest structures in the universe. They are large groups of stars.
c)
None of these are correct.
d)
All of these are correct.
18.
What star is 44 times larger than the sun?
a)
Sol
b)
Proxima Centauri
c)
Aldebaran
d)
Nebula
19.
How was our solar system formed according to Christians?
a)
The Big Bang Theory
b)
God
c)
None of these are correct.
d)
All of these are correct.
20.
Which of the following causes galaxies to gather into clusters?
a)
magnetism
b)
gravity
c)
nuclear reactions
d)
dark matter
100 %
