Rotation
What is most responsible for Earth's day/night cycle?
Earth's rotation
Earth completes one trip around the Sun in about
one year
True or false? Colder temperatures in winter are due to the Earth being farther away from the Sun?
FALSE
What is eccentricity in words?
How flat an ellipse is.
The closer the lines, the what the slope?
Steeper
Earth's rotation takes about
24hrs, one day
What is the name of the imaginary line separating Earth's Northern Hemisphere from the Southern Hemisphere?
The Equator.
When the north end of Earth's axis is tilted toward the Sun, North America will experience what kind of sunlight? How long will our days be?
More direct sunlight and longer days
What is the Eccentricity Formula? (Use your ESRTs!)
e = distance between the foci
divided by length of the major axis
The V's on a topographic map point which way?
Upstream, to higher elevation, away from the direction of flow.
The imaginary line around which the Earth rotates is called
The Earth's axis.
Which number best represents how many days are in a "leap year"?
366
A summer solstice occurs when
a. neither end of Earth's axis is tilted away from the Sun
b. a hemisphere experiences its longest daylight hours of the year
c. daylight hours are equal to darkness hours
d. Earth's axis is parallel to the Sun's rays
B
What planet has the most eccentric orbit? (Use your ESRTs)
Mercury
In which part of the sky is Polaris found?
Northern
How long is Jupiter's day? Use your ESRTs.
9hrs, 50 mins, and 30 seconds
Earth's revolution takes exactly how long?
365.26 days
During a _____________, day and night are each 12 hours long everywhere on Earth.
Equinox
What is the eccentricity of a perfect circle?
0
If a boat is crossing the International Date Line and the captain spots Polaris 35 degrees above the horizon, what are the coordinates of the boat?
(33 degrees North, 180 degrees)
In one year, Earth completes 365
a. solstices
b. revolutions
c. rotations
d. equinoxes
rotations
Which motion of the Earth is most responsible for Earth's seasons?
Revolution
When the south end of Earth's axis is tilted toward the Sun,
a. it is summer in the Northern Hemisphere
b. it is winter in the Northern Hemisphere
c. the Sun is low in the sky in the Southern Hemisphere
d. the Sun is farthest North of the Equator
B
What is the highest eccentricity an ellipse can have and what shape would it be?
1.0
If a specimen has a mass of 10grams and a volume of 35mL, what is the it's density? Would it float in water?
0.29g/mL, YES