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WorksheetsAstronomy unit 2 earth, tides, sun test
Total questions: 35
Worksheet time: 35mins
Right now, how far are you from the center of the Earth?
23,000 km
6,400 km
2 miles
100,000 miles
Where the tidal force is strongest, we say it's _______
low tide
high tide
tall
tidal locking
Where the tidal force is weakest, we say it's _______
low tide
high tide
tall
tidal locking
What is it called when a moon shows the same face toward it's home planet?
spring tides
darker
lighter
tidal locking
neap tides
Which tide is associated with the least difference between high and low water?
spring tides
darker
lighter
tidal locking
neap tides
Which tides are associated with a new or full moon?
spring tides
darker
lighter
tidal locking
neap tides
What is the time between high tide and low tide?
5 minutes
30 min
2 hours
6 hours
The tidal force stretches the solid Earth by about
5 cm
30 cm
2 meter
6meters
Unlike the other three terrestrial planets, Earth has _____
dirt
iron
hydrogen
liquid water
The consistency of the mantle is like _____
dirt
iron
very thick hot plastic
liquid water
The plates in the Earth's crust slide around at about the rate _____
of the tides
of a cheetah
that your fingernails grow
Which part of the Earth is about as hot as the surface of the Sun?
crust
core
ocean
Arizona
Earth's magnetic field is mainly generated by _____
convection of liquid in the outer core
electric motor in the earth
the tides
shifting of the continental plates
What percentage of the atmosphere is Nitrogen?
21%
78%
5%
1%
less than 0.005%
What percentage of the atmosphere is Oxygen?
21%
78%
5%
1%
less than 0.005%
What percentage of the atmosphere is Argon?
21%
78%
5%
1%
less than 0.005%
What percentage of the atmosphere is CO2?
21%
78%
5%
1%
less than 0.005%
What percentage of the atmosphere can H2O get to?
21%
78%
5%
1%
less than 0.005%
What is Ozone?
O
O2
O3
CO2
Why is Earth’s inner core solid even though it is hotter than the outer liquid core?
nuclear explosions
pressure
the Sun
What is the closest planet to our Sun?
Venus
Mars
Mercury
Earth
Jupiter
What is the 2nd closest planet to our Sun?
Venus
Mars
Mercury
Earth
Jupiter
What is the 3rd closest planet to our Sun?
Venus
Mars
Mercury
Earth
Jupiter
What is the 4th closest planet to our Sun?
Venus
Mars
Mercury
Earth
Jupiter
What is the 5th closest planet to our Sun?
Venus
Mars
Mercury
Earth
Jupiter
the point on the celestial sphere directly below an
observer.
Zenith
Nadir
Karman Line
Kuiper belt
the point on the celestial sphere directly above the observer
Zenith
Nadir
Karman Line
Kuiper belt
The international boundary of space
Zenith
Trans-Neptunian objects:
Karman Line
Kuiper belt
Van Allen radiation belts
an area outside of Neptune like the asteroid belt, but is larger.
Zenith
Trans-Neptunian objects:
Karman Line
Kuiper belt
Van Allen radiation belts
objects beyond Neptune
Zenith
Trans-Neptunian objects:
Karman Line
Kuiper belt
Van Allen radiation belts
2 donut shaped regions of the Earth’s magnetic field where some charged particles are trapped.
Zenith
Trans-Neptunian objects:
Karman Line
Kuiper belt
Van Allen radiation belts
What is it called when gases in our atmosphere hold the heat on Earth that would normally be radiated away.
Ozone
Magnetic field
Polarity
The Greenhouse effect-
the time it takes the Sun to move from its highest point in the sky on one day to its highest point in the sky on the next day.
Ozone
Solar day
Hydrostatic equilibrium
sidereal day
: the time it takes for the Earth to rotate about its axis so that the distant stars appear in the same position in the sky.
Ozone
Solar day
Hydrostatic equilibrium
sidereal day
the balance of pressures outward and inward. Such as the Sun's balance of gravity and nuclear fusion.
Ozone
Solar day
Hydrostatic equilibrium
sidereal day
