Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/81

Click to flip

81 Cards in this Set

  • Front
  • Back
Moon phase for a solar eclipse.
NEW MOON
Moon phase for a lunar eclipse.
FULL MOON
Moon phase when the Moon is entirely lit.
FULL MOON
Moon phase when only a small sliver of the Moon is lit.
CRESCENT
Moon phase when only a small sliver of the Moon is in shadow.
GIBBOUS
Phases between a New Moon and Full Moon.
WAXING
Moon phase when exactly half of the Moon appears lit.
QUARTER MOON
Phases between a Full Moon and New Moon.
WANING
Reason why we see phases of the Moon from Earth.
ANGLE CHANGES DUE TO MOON'S REVOLUTION
Approximately how long does each phase last
3.65 days
How much of the Moon is lit at any time?
HALF
What creates the Moon's light?
SUN
How much of Earth is lit at any time?
HALF
What creates Earth's light?
SUN
Moon phase for a solar eclipse.
NEW MOON
Moon phase during a lunar eclipse.
FULL MOON
For a total solar eclipse, what must be the relative distance between the Earth and Moon?
CLOSER
3 requirements for an eclipse
1) correct phase
2) correct plane (angle) of orbit
3) correct distance
Region around Earth where charged particles from solar wind are trapped.
MAGNETOSPHERE (VAN ALLEN BELTS)
Formed when charges particles escape the magnetosphere.
AURORAS
Celestial body having the greatest affect on Earth's tides.
MOON
Cause of High and Low Tides.
EARTH ROTATES, CHANGING THE APPARENT POSITION OF THE MOON AND THEREFORE THE MOON'S GRAVITY
Moon phase during spring tides
NEW MOON or FULL MOON
Moon phase during neap tides
QUARTER MOONS
Monthly tides that have higher than normal highs and lower than normal lows.
SPRING TIDES
Monthly tides that have less variation between high and low tides.
NEAP TIDES
Approximate time to complete one tide cycle (in Oregon, 2 high tides and 2 low tides).
24 hours
Darker shadow during an eclipse.
UMBRA
Lighter shadow during an eclipse.
PENUMBRA
Eclipse seen during the day
SOLAR
Eclipse seen at night.
LUNAR
Eclipse caused by Earth's shadow.
LUNAR
Eclipse caused by Moon's shadow.
SOLAR
Eclipse when a shadow falls on Earth.
SOLAR
Eclipse when a shadow falls on the Moon.
LUNAR
How many times each month will there be a spring tide?
2
How many times each month will there be a neap tide?
2
FIRST QUARTER
What phase?
FULL MOON
What phase?
WAXING GIBBOUS
What phase?
LAST QUARTER
What phase?
WANING CRESCENT
What phase?
WANING GIBBOUS
What phase?
WAXING CRESCENT or FIRST CRESCENT
What phase?
What moon phase is "invisible"?
NEW MOON
SOLAR
What type of eclipse?
LUNAR
What type of eclipse?
SOLAR
What type of eclipse?
SOLAR
What type of eclipse?
LUNAR
What type of eclipse?
Why the Sun doesn't have a greater effect on tides
TOO FAR AWAY
phase that is fully visible
FULL MOON
when Earth is closest to the Sun
DECEMBER/JANUARY
day of the year when the noonday Sun is highest on the horizon
SUMMER SOLSTICE
day of the year when the noonday Sun is lowest on the horizon
WINTER SOLSTICE
body creating a shadow in a lunar eclipse
EARTH
body creating a shadow in a solar eclipse
MOON
occurs when the Earth passes between the Sun and Moon
LUNAR ECLIPSE
occurs when the Moon passes between the Sun and Earth
SOLAR ECLIPSE
the days when there is equal amounts of light and dark
EQUINOXES
time of the summer solstice
JUNE 21
time of the winter solstice
DECEMBER 21
time of the spring equinox
MARCH 22
time of the fall equinox
SEPTEMBER 22
another name for spring equinox
VERNAL EQUINOX
another name for fall equinox
AUTUMNAL
position of Earth during equinoxes
NEITHER POLE IS POINTING DIRECTLY TOWARD OR AWAY FROM SUN
position of Earth during summer solstice
NORTHERN HEMISPHERE IS POINTING TOWARD SUN
position of Earth during winter solstice
SOUTHERN HEMISPHERE IS POINTING TOWARD THE SUN
compare seasonal patterns in northern and southern hemispheres
OPPOSITE
one rotation of Earth
DAY (24 HOURS)
shape of orbits
ELLIPTICAL
furthest point in orbit
APHELION
alternate rise and fall of oceans and seas
TIDES
total or partial obscuring of one body by another
ECLIPSE
why we see the same side of the Moon from Earth
MOON'S ROTATION = MOON'S REVOLUTION
closest point in orbit
PERIHELION
the closest point in the Moon's orbit
PERIGEE
the furthest point in the Moon's orbit
APIGEE
turn around an axis within the body
ROTATION
turn around an axis outside the body
REVOLUTION