WorksheetsUniverse
Total questions: 35
Worksheet time: 33mins
The explosion that sent the universe flying out is called _____.
The Big Bang
The Milky Way
The Solar System
The Sun
Since the Big Bang, and even today, the universe is still _____.
Expanding
Shrinking
Cooking
Spinning
Which statement is true?
The galaxies are moving toward us.
The galaxies are moving away from us.
The universe remains static or unchanged in motion.
None of the above
Light emitted from a star or galaxy can be separated into a band of colors, called a ________.
Red Shift
Wave Length
Spectrum
Microwave
high, low
high, high
low, high
low, low
The attractive force between objects is called....
force
Gravity
inertia
motion
Stars form in giant clouds of gas and dust. What are these clouds called?
Black Hole
White Dwarf
Super Nova
Nebula
Which component of the universe contains all other components listed below and would have the greatest mass?
Solar system
Nebula
Galaxy
Planetary System
When a mass of hydrogen has enough density, it begins to fuse the hydrogen atoms together. This produces heat and light. What is this classified as?
nebula
star
galaxy
planet
Which describes the location of star A correctly?
Star A is less bright than the Sun and has a surface temperature above 25,000 K
Star A is brighter than the Sun and has a surface temperature below 25,000 K
Star A is less bright than the Sun and has a surface temperature of above 11,000 K
Star A is brighter than the Sun and has a surface temperature below 11,000 K.
Which type of stars belong to spectral class K and have the lowest luminosity?
Giants
White Dwarfs
Supergiants
Main-Sequence stars
Where in the Milky Way is Earth found?
Our Sun is in the middle of the galaxy
about 1 light year from the middle of the galaxy
It varies depending on how it rotates
Near the outer edge of the galaxy
What is the nearest star to planet Earth
Moon
Sun
Sirius
Proxima Centauri
Our Sun is classified as an average star. This places it in the middle of which type of star on the HR diagram?
Main sequence
White dwarf
Red giant
Super giant
Which stars have the greatest luminosity according to this HR diagram?
Hot white dwarf
Hot main sequence star
Cool super giant
Cool giant
Why does our Sun, an average sized star, appear so much brighter than other more massive stars?
The Sun is lit
The Sun is closer to Earth than other stars
The Sun is made of different elements
The Sun is prettier so it shines brighter
The explosion that sent the universe flying out is called _____.
The Big Bang
The Milky Way
The Solar System
The Sun
sort of cool, dim (not too much light), and red?
What characteristics are used to classify stars?
Flammability, weight, and reactivity
Temperature/color and brightness
Conductivity, luster, and density
Malleability, distance, and viscoscity
What is the Hertzsprung-Russel Diagram?
A map which tells the approximate location of stars in the Milky Way galaxy and their distance from Earth.
A table that alphabetically lists stars by name and includes dates of when the star was first charted.
A chart which organizes stars into categories based on the amount of Hydrogen they burn.
A graph used to classify stars according to their luminosity, color, temperature, and stage.
Knowing the color of a star also tells us its __________
age
location
temperature
name
