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WorksheetsThe Universe Review
Total questions: 30
Worksheet time: 15mins
What force is most responsible for the formation of our solar system?
heat
friction
gravity
magnetism
How many stars are there is our solar system?
billions
one
several thousand
too many to count
How many stars are there in our galaxy as well as in other galaxies?
several hundred
thousands
millions
billions
What can you infer from the fact that groups of sun spots seem to shift locations?
the sun is revolving very fast
the sun is rotating slowly
not all parts of the sun rotate at the same speed
Earth and sun are not rotating together
What tool do we use to gather knowledge about objects in outer space?
telescopes
binoculars
microscopes
computers
Which of the following are examples of electromagnetic radiation applications?
a satellite sending pictures to Earth
a telescope capturing photographs of mars
a solar panel turning sun light into electricity
all answers are correct
If the frequency of a light from a far away object is increasing, is it moving toward or away?
it's moving closer to you
it's moving farther away from you
frequency of light waves does not give you this information
it's staying the same distance from you
Think about waves... As the wavelength increases, the frequency _________.
increases
decreases
stays the same
they are not related
What would you call cooler dark spots on the sun's surface?
prominences
solar flares
sun spots
solar wind
Of all the regions of wavelengths in the electromagnetic spectrum, which one would be smallest?
radio waves
gamma rays
visible light
infrared
What could be described as a "ribbon" of fire, or a "loop" of flame?
a sun spot
a solar flare
a prominence
solar wind
What does the color of a star indicate?
its distance from Earth
its temperature
its apparent magnitude
its absolute magnitude
Most orbits are elliptical (oval). What changes as the two objects get closer?
weight of the orbiting object
mass of the orbiting object
volume of the orbiting object
density of the orbiting object
What two things would determine the absolute brightness of a star?
temperature and density
size and temperature
color and density
color and mass
Why does everything in our solar system continue to orbit the sun?
because the planets are very massive
because the planets are revolving very fast
because of the gravitational pull of the sun
because of the speed of rotation
As objects orbit the sun, the gravitational pull increases as they get closer. So does ____.
their speed
their mass
their volume
their density
If a star is 57 light years from Earth, what does this mean?
It will take 57 years to get there in a rocket
it will take light from this star 57 years to reach Earth
the star is 57 years old
it will reach Earth in 57 years
Why does the sun look so much bigger than all the other stars in the sky?
because it is!
because it is the closest star to us
because it is so far away
because it is so much hotter
Which is the biggest?
a galaxy
a nebula
a star
a planet
What unit of measure do we use to measure things in our solar system?
the light year
kilometers
miles
the AU (Astronomical Unit)
What name do we have for the distance between the Earth and the Sun?
a light year
an AU (Astronomical Unit)
a trillion kilometers
a million miles
True or False. The known Universe is ENORMOUS!! Even thousands of galaxies is less than 1%!
True
False
How are we able to see new things as we study space?
the development of new technologies.
we continue to research
the use of models
theories keep changing
The BEST models __________.
allow for new discoveries to be added
shows actual sizes
shows actual distances
What do we use to determine the apparent magnitude of a star?
its size
its density
its distance from Earth
its location in relation to other stars
What will happen to an astronaut as he goes from the Earth to the moon?
his mass will increase
his mass will decrease
his weight will increase
his weight will decrease
Put these things in order from smallest to largest - Earth, Moon, Sun, Galaxy
moon, Earth, Sun, Galaxy
Galaxy, Sun, Earth, moon
moon, Earth, Galaxy, Sun
moon, sun, Earth, Galaxy
What is The Milky Way?
a great candy bar
the farthest known galaxy
our galaxy
Which of these is closer?
the nearest star (other than our sun)
the nearest asteroid
the nearest galaxy
Which of these is the farthest away?
the nearest planet
the nearest asteroid
the nearest star
the nearest galaxy (other than the Milky Way)
