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134 Cards in this Set

  • Front
  • Back
nighttime temp would be much lower if _______
there was no atmosphere
_______ is the transfer of energy by electromagnetic waves
radiation
reflection and abosorbtion by the atmosphere prevents some _______ from reaching earth
solar energy
absorption of heat by the atmosphere is called the _________ effect
greenhouse
_____ humidity is the amount of water vapor in a volume of air compared to the amount of moisture that could be in that volume of air at a certain temperature
relative
when air holds all the water vapor it possibly can, we say it is _______
saturated
on a warm summer day, when water droplets form on dust particles in clouds and become too heavy to be held up by wind, we have _____
rain
The _______ is an apparent force that results from the earths eastward rotation
Coriolis
IF air-containing moisture is cooled, the temperature at which the vapor is turned to liquid is known as the ________
dew point
earths water enviornment is know as the _________
hydrosphere
When moisture condenses out of air and falls to the ground as rain, snow, sleet, or hail, we are experiencing ________
precipitation
Water becomes water vapor by two main methods, evaporation and _________
transpiration
The _____ are windless zones at the equator
doldrums
The layer of atmosphere on top of the tropopause is the __________
stratosphere
The _______ is the ceiling of the weather zone
tropopause
electrically charged particles are found in the ________
ionosphere
winds that blow toward the equator from about 30 degrees latitude are known as
tradewinds
sea and land breezes are caused because
the land heats and cools faster than the water
cold, dry, dense air currents that descend weekly to earth at the north or south poles are the _________
polar easterlies
the ________ is the layer of the atmosphere nearest earth
troposphere
T/F:the pressure of air at 1000 feet is greater than the pressure at sea level
F
the ________ is the coldest layer of the atmosphere
mesosphere
a _______ is used to measure air pressure
barometer
a sea breeze is created when
land heats faster than water
the_______ extends from 80 km upward into space
thermosphere
the _____________ are responsible for the movement of weather across the united states
prevailing westerlies
high, white, feathery clouds usually made of ice crystals with fair weather are _______ clouds
cirrus
dark, gray clouds that have ragged edges and produce precipitation are ________ clouds
nimbus
water can form on surfaces at night when the air is clear because
the air temp near the ground drops to the dewpoint
if everything else were held constant, we would predict that the relative humidity of a classroom full of students would be ___ than of an empty classroom
higher
rain that freezes as it drops to the ground is called ______
sleet
thick, puff clouds are called ______ clouds
cumulus
a _________ forecasts the weather using data collected from many sources
meteorologist
to keep track of pressure, weather maps are drawn with lines connecting points of equal pressure. these lines are called _______
isobars
__________ are bodies of air that have the same properties as the regions over which they form
air masses
areas of high pressure are known as
anti-cyclones
______ form where two air masses meet
fronts
a violent, whirling wind that moves over a narrow path on land is known as a
tornado
when servere weather conditions could occur, a ____ is issued
watch
the interactions of air, water, and ________ cause weather
solar energy
air masses are important because of their overall______ and moisture content
temperature
thunderstorms generally form along a ______
cold front
during a storm watch, servere weather
is likely to occur in your area
when a severe weather warning is issued, you should
take shelter or go to shelter immediately
on a weather map, ___________ describe the local weather at each location
station models
large cities may effect weather because of
large amounts of pavement
the path earth takes around the sun is its ____
orbit
a universe where the sun is the center would be called a _____ universe
heliocentric
Gravity and ______ control the earths orbit
inertia
Johannes Kepler discovered that the paths in which planets move around the sun are
elliptical
the greatest distance of a planet from the sun is known as its ______
aphelion
any hot, bright sphere of gas like the sun is called a _______
star (bright, hot, sphere of gas)
the most widely held astronimical theory about the origins of the universe is the ___________ theory
big band
what are the three types of galexies?
spiral, elliptical, irregular
the brightness of a star as we view it from earth is its ________ magnitude
apparent
we classify stars using their surface temperatures and ________ magnitudes
absolute
a ________ is a star in which matter is dondensed and no light encapes
black hole
constellations changr positions in the night sky during the year because ______
of earths motion
the laws of motion were developed by
Newton
the galaxy im which our solar system is located is a _____ galaxy
sprial
the name of our galaxy is the
milky way
light gathering telescopes that use concave mirrors are _______ telescopes
reflecting
a __________ is used to determine a star's speed and direction
spectrograph
_______ invented the reflecting telescope
newton
x-rays, visible light, and ultraviolet light are all forms of _______ energy
radiant
the elements of the sun can be defined by using a
sprectroscope
the distance between the sun and the earth is know as an
astronimical unit
the spacecraft placed in orbit by the us and used by several astronauts as a space station was the ______
skylab
telescopes that rely of glass lenses to gather and focus light are ___ telescopes
refracting
telescopes that collect radio waves are known as _____ telescopes
radio
the energy from the sun reackes earth in the form of _____
radiant energy
to measure the distance between stars, the unit of measure is ____-
light years
stars in the red shift __ from earth
receed
TF: the corona is a transparant zone of hot gases around the sun and normally can not be seen
True
Sunspots are hot spots on the suns surface TF
False
TF the level of sunspot activity seems to increase and decrease in an 11-year cycle
true
TF no particles from the sun reach earth
false
TF the h-r diagram relates surface temp of a star to its apparent magnitude
false ish
TF the greater the magnitude of a star, the brighter it is
tureee
TF the sun is a stable star found in the main sequence
True
TF radiant energy is defined by wavelegnth, frequency, and waveheight
True
TF solar flares often occur near sunspots
True
TF all stars have absolute magnitude
true
TF there are different constellations in the night sky during different seasons
True
red colors on the spectrum indicate long wavelengths TF
True
TF infrared waves and gamma rays are not forms of radiant energy
False
TF The penumbra is the darkest part of the shadow
false
tf the moon does not have any geologic a ctivity
false
tf the winter solstice is march 20, when winter officially ends
false
tf earth revolves and rotates
true
tf observed motion is the same thing as real motions
false
tf the seasons occur because of the earths tilt and revolution around the sun
true
bright streaks that extend outward from the craters on the moon are called rays tf
true
tf scientists are sure of how the moon ca, to circle the earth
false
the moon rotates on its axis and revolves around the earth in the same amount of time tf
true
tf the space shuttle that blew up was mercury tf
false
the voyager was responsible for moon missions tf
false
tf newtons 3rd law of motion explains how a rocket motor works
true
tf skylab was a space worksho[
true
a satellite can orbit a planet
true
when the moon is between the earth and the sun
new moon
when the moon is on the opposite side of the earth than the sun is
full moon
when the moon appears to be north of the earth
first quarter moon
a ______ eclipse is when the moon is between earth and the sun
solar
during what phase of the moon can a solar eclipse occur?
new moon
m, e, b
rotates on its axis
both
m, e, b
has seasons
earth
m ,e, b
revolves around the sun
both
m, e, b
has soil that contains iron in crystal form
moon
m, e, b
can cast a shadow on another heavenly body
both
m, e, b
has a rotational period equal to its revolutionary period
moon
m, e, b
has weather
earth
the second smallest planet we know and closest to the sun is _______
mercury
the planet that is very hot because of the greenhouse effect and has clouds of sulfuric acid is
venus
a plant about the size of venus, has water vapor in its atmosphere and has a rotational period of 24 hours is
earth
the largest know volcano in our solar system in an extinct volcano known as Olympus Mons and is found on the planet
mars
many planets have natural satellties. phobes, for example, is one of the satellites that orbit the planet
mars
the largest know planet in our solar system is known as
jupiter
the giant red spot is located on the planet
jupiter
_ is the largest of all the solar system satellites
ganymede
the planet with the lowest density and over on thousand rings is
saturn
The closest satellite to Jupiter with a number of erupting volcanoes is
Io
at times, the planet _ is actually the most distand planet from the sun
neptune
the third planet from the sun is _
earth
the solid portion of a comet is its
nucleus
a cloud of gas and dust around the solid portion of a comet is known as the
coma
_ are small fragments of matter moving in space
meteoroids
when small fragments of matter moving in space strike earth's atmosphere and burn up, they are called
meteors
the asteroid belt did not form a planet because
it did not hahve enough mass
most asteroids are located in the region between
mars and jupiter
venus rotates in a fashion opposite that of most planets, it is said to display _ motion
retrograde
the planet most adapted to support life in our solar system is _
earth
the planet with eccentric orbit is
pluto
scientist believe that the Sun is formed
from a cloud of gas and dust