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WorksheetsStucture of the Universe
Total questions: 9
Worksheet time: 11mins
It would be appropriate to use Astronomical Units (AU) to measure the distance between which of the following?
Countries
Galaxies
Stars
Planets
What is the primary difference between a moon and a planet?
Planets are always larger than moons.
Moons orbit planets and planets orbit the Sun.
Moons have a greater mass than the planets that they revolves around.
Planets are spherical, and moons are more irregularly shaped.
Which statement is true regarding measuring distances in space?
An astronomical unit (AU) is larger than a light year.
The time taken for light to travel through our Solar System is longer than that for light to travel through the Milky Way.
The Earth is one astronomical unit (AU) from the Sun.
All of the terrestrial planets are more than one astronomical unit (AU) from the Sun.
Jill is creating a scale model of the Solar System. She uses a basketball to represent the Sun. Which of the following should she use to most accurately represent the size of Earth?
tennis ball
ping pong ball
marble
grain of sand
Which of the following has the hierarchy of the universe listed, in order, from least complex to most complex.
planet, moon, star, galaxy, universe
Universe, galaxy, star, solar system, planet, moon
moon, planet, solar system, galaxy, star, universe
moon, planet, solar system, star, universe, galaxy
Scientists use the light-year to describe the relationships between objects in space. What does a light-year measure?
the distance that light can travel in one year
the brightness of light that travels through space
the number of years it takes light to travel to Earth
the time it takes light to travel 1 million km
Why do we use light years and astronomical units to measure distances in space?
Space is too fast to use normal measurement so we use light year.
Hubble discovered these units and scientists continue to use them
Space is too small to use km, it wouldn't make sense.
Space is too big to use traditional units like kilometers.
