WorksheetsEarth's Movements
Total questions: 15
Worksheet time: 8mins
The Earth is not an exact sphere because . . .
It is still settling into a round shape because it is "young", gravity will make it a perfect sphere eventually.
The Sun's gravitational pull makes it lopsided.
It is spinning on its axis fast enough to make it bulge out a bit at the middle.
If a planet is in the "Goldilocks Zone" of its star, that means water can . . .
not exist on that planet.
only be a gas (water vapor) on that planet.
be a liquid on that planet.
only be frozen on that planet.
What does au stand for?
Astro Umbilical
Astronomy University
Astronomical Unit
Amphibious Universe
Distances in our solar system are measured most appropriately in what unit?
Astronomical Units (AU)
light years (ly)
kilometers (km)
miles (mi)
Which of the following causes us to experience seasons?
Precession
Tilt of Earth's axis
Barycenter
Solstices
There are 4 equinoxes every year.
True
False
The longest day of the year is the
vernal (spring) equinox
summer solstice
autumnal equinox
winter solstice
Starting in January, in what order do we experience the following events in the Northern Hemisphere?
Vernal (Spring) Equinox
Summer Solstice
Autumnal Equinox
Winter Solstice
What is the definition of a day?
The amount of time it takes for the moon to complete one orbit around the Earth.
The amount of time it takes for the Earth to complete one orbit around the Sun.
The amount of time it takes for the Earth to complete one full rotation on its axis.
What is the definition of a year?
The amount of time it takes for the moon to complete one orbit around the Earth.
The amount of time it takes for the Earth to complete one orbit around the Sun.
The amount of time it takes for the Earth to complete one full rotation on its axis.
In thousands of years, the north star will be Vega instead of Polaris. Why is this?
barycenter
precession
change in axis tilt
change in orbit shape
"Obliquity" is another way of talking about . . .
the shape of a planet's orbit
a planet's tilt on its axis
Precession
Barycenter
"Eccentricity" is another way of talking about . . .
the shape of a planet's orbit
a planet's tilt on its axis
Precession
Barycenter
When one celestial body orbits another, they are actually both orbiting around the middle point of their combined mass, which is called the
precession
equinox
barycenter
obliquity point
