Universal Gravitation
Tides
Seasons of the Year
Moon Phases
Miscellaneous
100
an attractive force between masses
gravity
100
daily changes in the level of ocean water
tides
100
The Earth's seasons are caused by what?
the tilt of the Earth's axis as it revolves around the Sun
100
True or False: The moon produces its own light.
false
Double your points: How does the moon "produce" light?
100
Which picture best describes the Sun, Earth and Moon relationship?
3
200
The gravitational pull between two objects increases as _?_.
mass increases or distance decreases
200
Which two arrangements of the Sun, Earth and Moon would produce a spring tide?
A and C
200
On the Equinoxes, the Sun's direct light is on what major line of latitude?
equator
200
new moon
200
In the diagram below, what moon phase occurs at location 2?
waxing crescent
300
Why would you weigh less on the Moon?
The Moon has less mass, thus less gravity.
300
Which two arrangements of the Sun, Earth and Moon would produce a neap tide?
B and D
300
What location would produce summer in the Northern Hemisphere below?
A
300
If you saw a waxing crescent in the sky tonight, predict what moon phase you would see in 14 days.
waning gibbous
300
You see a full moon in the sky. Predict what moon phase you will see in 21 days.
first quarter
400
the gravitationally curved path of an object around a point in space
orbit
400
What do we call it when ocean levels rise to their maximum point in any day?
high tide
400
On what days do we have 12 hours of sunlight and 12 hours of night?
equinoxes
400
In the diagram below, what moon phase occurs at location 4?
waxing gibbous
400
the partial or total blocking of light of one celestial object by another
an eclipse
500
the time it takes an object to travel once in a complete orbit
revolution
500
What do we call it when ocean levels fall to their minimum point in any day?
low tide
500
December 22nd is usually the what in the Southern Hemisphere?
the summer solstice
Double your points: What is it in the Northern Hemisphere?
500
In the diagram below, what moon phase occurs at location 7?
third quarter or last quarter
500
Why does the same side of the Moon always face Earth?
The Moon rotates and revolves at the same rate, so only the one side is ever seen on Earth.
600
when an object spins around a fixed point
rotation
600
How long is it from a high tide to a low tide?
approximately 6.25 hours
600
What location would produce summer in the Southern Hemisphere below?
C
600
waxing crescent
600
What location would produce spring in the Northern Hemisphere below?
D
700
The orbital velocity of the inner planets has to be greater than the orbital velocity of the outer planets for them to stay in orbit because they have _?_.
greater gravitational pull on them from the Sun
700
Which object has the greatest effect on ocean levels?
the Moon
700
What location would produce winter in the Northern Hemisphere below?
C
700
first quarter
700
third or last quarter
800
The Earth revolves _?_ and rotates _?_.
both are counter-clockwise
800
How long does is it between high tides?
approximately 12 to 12.5 hours
800
What location would produce fall in the Northern Hemisphere below?
B
800
waning gibbous
800
waxing gibbous
900
Explain what would happen in the Earth - Sun relationship if the mass of the Sun doubled. Explain in detail why this would happen.
The Earth would be pulled into the Sun by the increased gravitational pull of the Sun.
900
If you were at the beach for 24 hours, how many high and low tides would expect during that time?
2 high
2 low
900
What location would produce fall in the Southern Hemisphere below?
D
900
waning crescent
900
Solar eclipses can only occur during what moon phase?
new moon