Shared Flashcard Set

Details

Earth and Space
Kostroun
18
Science
8th Grade
03/19/2014

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Cards

Term
What causes the changing appearance of the moon during the lunar cycle?
Definition
The change is the relative positions of the earth, the moon, and the sun.
Term
Approximately how many days after a full moon does the New Moon occur?
Definition
14 days
Term
If soldiers wish to take advantage of moonlight for a beach landing and the moon is in the Last Quarter phase, when would there be the most light?
6, 11, 17 or 22 days later?
Definition
22 days
Term
If you setup an experiment using a flashlight for the sun, a tennis ball for the moon, and a basketball for the earth, which one should move to demonstrate the changing appearance of the moon from the earth?
Definition
You should move the tennis ball around the basketball.
Term
Which lunar phase will occur approximately seven days after a first quarter moon?
Definition
Full Moon
Term
What is the best description of how the interaction of the sun, moon, and earth result in the lunar cycle
Definition
Light from the sun always illuminate half the mood, but we say different for students of the lit have as relative positions change.
Term
Which of the following would have the greatest effect on the size of tides on Earth?
Definition
Decreasing the distance between the moon and earth
Term
High tides are created on earth when nearby celestial bodies create what change in the oceans?
Definition
Gravity pulls on the water creating bulges on two sides of earth
Term
The moon orbit creates different moon phases. When the New moon phases is closest to the sun, what phases goes with the Spring Tides and which with Neap Tides?
Definition
Spring tides - new and full moon
Neap tides - 1st and 3rd quarter
Term
On a tidal height chart, which heights are associated with the full and new moon?
Definition
High tide (bigger lines)
Term
What are the two main factors that create the tides on Earth?
Definition
Gravitational forces and rotation of Earth on its axis
Term
How many points on Earth experience high tide at the same time?
Definition
2
Term
In a 24 hour period how many high and low tides can a geographic location expect?
Definition
2 high tides and 2 low tides
Term
The Southern Hemisphere experinces the coldest seasonal weather during what portion of the Earth's orbit?
Definition
When the South pole tilts away from the Sun
Term
The period of day light experienced each day on every part of Earth would be shorter if which one of the following changes occured?
Definition
Earth rotated more quickly on its axis
Term
Seasonal variations on Earth would be significantly changed if which of the following were changed?
Definition
The angle of tilt of Earth's axis
Term
The speed of the rotation of Earth has the greatest effect on which of the following?
Definition
Length of day and night
Term
Which of the following would cause the seasons on Earth to change more gradually?
Definition
Increasing the amount of time it takes Earth to orbit the Sun
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