CI 248 Earth, Sun, Moon exam

How long does it take Earth to complete one revolution?

1 year

How long does it take the earth to complete one rotation?

1 day

Why can we see the moon?

It reflects the sun's light

What are the different shapes of the moon called?

lunar phases

How long does it take the moon to complete one revolution around the earth?

1 month

what occurs on earth because of our rotation?

day and night

what occurs on earth because of our revolution and tilt?

seasons

why does the sun rise in the east and set in the west?

the earth rotates on its axis

which of the following can be found on earth but not on the moon?

atmosphere

rotation means to...

spin on an axis

revolution means to...

go around something

which of the following can be found on both the earth and the moon?

rocks

which planet is closest to the sun?

venus

which planet has the longest revolution?

neptune

if a full moon is observed on Aug. 5 when will the next full moon occur?

Sept. 4

what is the correct order of inner planets?

mercury, venus, Earth, mars

what separates the inner planets from the outer planets?

the asteroid belt

what objects is in the center of our solar system?

the sun

when the moon appears to be getting bigger and brighter it is ...

waxing

when the moon is getting smaller or darker it is...

waning

the rise and fall of earth's oceans is called...

tides

what causes tides to happen on earth?

the moon's pull of gravity

how often do tides occur?

twice daily

what is the correct order for the outer planets?

Jupiter, saturn, uranus, neptune

how long does it take for the earth to go around the sun?

365 days (or 1 year)

how long does it take for the moon to go around the earth?

28 days or 1 month

the number of hours of daylight that a location gets depends on how close it is to the....

equator

true or false: the earth revolves around the moon

false

true or false: the earth's moon revolves around the sun as both go through space around the sun

true

true or false: temperatures vary over the course of the year at different locations

true

true or false: the moon appears in a series of irregular phases that are hard to predict

false

true or false: each night we see a different side of the moon

false

true or false: ocean tides follow a predictable pattern

true

true or false: eclipses are predictable

true

true or false: the earth's north-south axis is tilted at an angle

true

true or false: when it is winter in the northern hemisphere it is summer in the Southern Hemisphere

true

true or false: the number of daylight hours is the same all over the earth

false

the moon and the such pull on the earth. This pull has a major impact on earth's:

ocean tides

the alignment of the sun, earth, and moon can produce shadows called:

lunar or solar eclipses

the earths moon is:

always much closer to the earth than it is to the sun

when people on earth cannot see a moon, which phase is the moon in?

new moon

which best explains why the earth has tides:

the moon has a gravitational pull on earth

what does earth's rotation on its axis cause?

day and night

what types of tides occur when the earth, sun and moon are aligned sun, moon, earth?

spring tides

earths axis it tilted with respect to earths orbit at an angle of:

23.5 degrees

why does earth have seasons?

its axis is tilted as it moves around the sun

during what phase of the moon can a lunar eclipse occur?

new moon

each planet moves around the sun in a path in the shape of a(n):

ellipse

the time when the sun is directly above the equator, and daylight hours are equal to night:

equinox

the sun appears to rise in the east and set in the west because:

the earth rotates in a counter clockwise direction

when the lit side of the moon appears to get bigger, we say the moon is...

waxing

when does the summer solstice occur?

June 22

the most important force that creates tides is the gravity of the...

moon

neap, spring, high and low are all types of ...

tides

when the earths shadow falls on the moon, a ________ eclipse occurs

lunar

when the moon's shadow falls on part of the earth a ______eclipse occurs

solar

the different appearances of the moon are called ________

phases

the difference between high and low tide is called the tidal _______

range

how long does it take the earth to make one complete rotation?

24 hours

how long does it take the earth to revolve around the sun?

1 year

to spin in one place is to...

rotate

when one object travels around another object it is....

revolving

we have day and night because ...

the earth is rotating on its axis

we have seasons because ...

the earths axis makes us closer to the sun in the summer

the earth rotates on its...

axis

how long does it take the moon to revolve around the earth?

28 days

how long does it take for the earth to rotate once on its axis?

1 day

how long does it take for the earth revolve once around?

1 year

true or false: equinox means equal night

false

true or false: the distance of the earth from the sun causes the cycle of seasons?

true

the tilt of the earth is....

90 degrees

the solstices are in...

March and June AND Sept. and Dec.

day and night are caused by the earths...

rotation

seasons are caused by the earths ...

tilt

occurs in March, spring in the northern hemisphere. Day and night are both about 12 hours long....

equinox

summer in the northern hemisphere. The longest fay of the year in the northern hemisphere

autumn equinox

June northern hemisphere. It is the longest day of the year in the Northern hemisphere

summer solstice

How is our sun different from all other stars?

it is much closer to earth

Why do giant stars look small from earth?

they are very far away

which statement about stars is true?

many stars are much larger and hotter than our sun

which kind of star is the hottest?

blue star

what kind of star is the coolest?

red star

which is a huge ball of hot gases that gives off its own light?

a star

our sun is a .....

medium-sized star

a stars brightness depends on...

it's size and how hot it is

the largest stars are called...

giants and supergiants

the smallest stars are called....

white dwarfs

true or false: gravity is the force of attraction between two objects

true

true or false: any object with mass experiences gravity

true

why do astronauts bounce and appear to float on the moon as they walk?

gravity is weaker on the moon

true or false: the mass of most objects are too small to cause them to move towards each other

true

earths gravity pulls everything towards the...

center

gravitational force is small between objects with _____ masses

small

as distance increases, gravitational force _______

decreases

as mass increases, gravitational force _______

increases

_________ is a measure of gravitational force

weight

why doesn't the sun pull us off of the earth?

it's too far away