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Astronomy Less


The theory of the solar system that says that everything revolves around the sun Heliocentric Theory
What type of maker developed the telescope? Lens Maker
What kind of orbit do heavenly bodies move Elliptical
What is the time period of the moon's orbit around the Earth? 1 month
What Earth revolves around what? the Sun
What type of calendar is based upon the Earth's orbit around the sun? Solar Calendar
What type of telescope uses lenses to bend light into an image? Refractive
The day is based upon one ______ of the Earth. Rotation
Who invented the reflecting telescope? Newton
Where do scientists build telescopes to minimize city lights and atmospheric interferences? Satellites or mountains
Does the Earth remain at a constant distance from the Sun throughout the year? No
What did Galileo discover by Jupiter? Four moons
Hubble discovered that the galaxy's size is what? Increasing
What type of telescopes detect unseen light waves? Radio
What are the three types of calendars? Solar, Lunar, Solar-Lunar
What is the area of intense pressure and density called? Singularity
What were the first atoms? (H)Hydrogen, (He)Helium
Who discovered that galaxies are moving away from each other? Hubble
How old is the universe? 13.7 billion
The outer planets were formed by the accretion of what? Ice
What does the sun's heat cause in the solar system? Gradient
What is the red shift? As galaxies move from each other, there is an increase in the wavelength of their color.
What is the process called in which the planets were formed? Accretion
A cloud of gas and dust is called what? Nebula
What created the craters of the inner planets? Meteors
What kind of molecules will sink to the core of a planet during differentioation? Heavy molecules
Jupiter is similar to the Sun, but will never become a star. Why? Because it's 10 times too small
How old is the solar system? 406 billion years
How did the Earth get water? Meteors
Where did the asteroid belt come from? Jupiter's gravity
How much would a 180 pound person weigh on the moon? 30 pounds
The main part(darkest part) of Earth's shadow is called Umbra
A New moon occurs during? The afternoon
What causes the tides? The moon's gravity
Two things the moon does not have Water and Atmosphere
When was the moon born? 4.6 bya
When the moon is moving from new to full, it is increasing in size and called ? waxing
Neap tides are weak tides and occur in which phase of the moon? half
What phase of the moon will cause the highest tides? New
Why do we only see one side of the moon? Rotates and revolves at the same speed
Is "the dark side" of the moon always dark? No
planet with the longest orbit Neptune
Planet with the fastest rotation Jupiter
The hottest planet Venus
Planet(s) with the fastest winds Saturn/Neptune
Planet the has the Great Dark Spot Neptune
Planet with the widest range of surface temperatures Mercury
Planet that has red soil Mars
Planet that has ice and vapor but no liquid water Mars
Planet that has a horizontal rotation Uranus
Planet that has a retrograde rotation Venus
Planet that was originally thought to be a star Uranus
Least dense planet Saturn
This planet has colored belts and zones Jupiter
This gas planet has no internal heat source Uranus
This planet has no atmosphere Mercury
This is the smallest planet Mercury
These planets atmosphere's are mostly methane Uranus/Neptune
This planet's rotation takes longer than its revolution. Venus
This is the largest plant Jupiter
Why does Mars have such large volcanoes compared to Earth? No Plates
Why does Mercury get so cold at night? It has no atmosphere
Why is Uranus colder than Neptune? It has no internal heat
Why was Venus called our "sister" planet? It looks similar
What did people in the 1700 and 1800's believe about Venus That it had people on it
Created by: geauga academy