geo test 2 Flashcards
planets of ss
Mercury,venus,earth,mars,jupiter,saturn,uranus,neptune(8)
Characterize terrestrial planets and give
examples.
-Rocky ,dense planets located relatively close to the sun…
-Mercury,venus,earth,Mars
Characterize non-terrestrial planets and
give examples.
-often composed mostly of gases or other
substances
-Jupiter, Saturn, Uranus, Neptune
What are Eris, Pluto, Haumeas,
Makemake, Ceres?
Dwarf planets
What is the real shape of the Earth?
Geoid
Name some proofs showing the spherical
shape of the Earth and define one of your
choice.
-A ship on its cruise disappears slowly on the
horizon
-The position of stars changes when we go on
southward or northward
-The shadow of the Earth on the Moon is circular
during a moon eclipse
Name components of first atmosphere on
the Earth. Was it suitable for life?
hydrogen,Helium-very toxic for life
Write everything that you know about
second atmosphere.
-Result of: out gassing from wide spread volcanic
activity
-Consist of carbon dioxide, nitrogen, methane,
emonia, water vapour
Describe the Earth as the planet of the
Solar system.
-3rd planet of solar system
-no rings,
-5th largest
-possible life
-terrestrial surface
Define revolution of the Earth around the
Sun. How long does it take?
-Earth orbit - elliptical shape
-365,24 days = one year
Perihelion?
Point where Earth is the closest to the sun (3rd
january)
Aphelion?
Point where Earth is the furthest from the sun
(4th July)
Name and describe the four characteristic
positions of the Earth.
-Spring Equinox (march 20-21),the south pole is tilted towards the sun
-Winter Solstice (december 21-22),the south pole is tilted towards the sun
-Fall Equinox (September 22-23),the north pole is tilted towards the sun
-Summer Solstice (June 20-22),the north pole is tilted towards the sun
consequences of the motion
of the Earth?
-Day night cycles
-Sea levels rises and falls
Define rotation of Earth on its axis.
-Imaginery line goes through both poles
Earth rotated on its axis from the West towards
East
-a solar day =24
What are time zones? How are they set?
-One time zone = one local time
-One turn 360 - 15 degrees - 1 time zone
-24 time zones
What is the International Date Line?
-180 degrees meridian in the pacific ocean
-East - substract 1 day
-West - add 1 day
How can be time determined according to
the time zones?
-O degree - greenwich
-To west = minus 1 hour
-To east = plus 1 hour
What is natural satellite?
Smaller body which moves around a larger body
What is natural satellite of the Earth?
Moon
Describe the Moon’s surface.
-Dusty and barren surface
-craters, mountains
-very little gravity
- extremely hot days and cold nights
How long does take one relovution of the
Moon around the Earth?
28 days
How long does take one rotation of the
Moon on its axis?
28 days
Name moon phases in correct order.
New
Waxing Crescent
First Quarter
Waxing Gibbous
Full
Waning Gibbous
Last Quarter
Waning Crescent
New
Define new moon and full moon.
-Full moon - whole disc of the moon is visible
-New moon - moon is not visible
Define spring tides.
-The moon is at the full or new phase
The sun, moon and earth are in alignment (V
jednej línii)
Define neap tides.
