Show:
Vocab
Moon
Earth
Gravity, Mass, Weight, & Distance
Inertia and Orbital Motion
100
What is solstice?
What is the two days of the year on which the sun reaches its greatest distance north or south of the equator?
100
When do solar eclipses occur?
When the moon passes directly between the Earth and the Sun.
100
What causes day and night?
Rotation
100
What does the Law of Universal Gravitation (LUG) state?
The LUG states that all objects in the universe are pulling on each other.
100
Why does the moon shine?
The moon shines because its surface reflects light from the sun.
200
What is lunar eclipse?
What is the blocking of sunlight to the moon?
200
How many phases of the moon are there?
There are eight.
200
How long does a complete revelation of the earth take?
About a year.
200
What keeps the moon in orbit?
Gravity.
200
What are the moon phases names?
New moon, waxing crescent, last quarter, waning gibbous, full moon, waxing gibbous, first quarter, and waxing crescent.
300
What is orbit?
What is the path of an object as it revolves around another object in space?
300
How are tides caused?
How much of the moon's gravity is pulling at earth.
300
Why is it warmer near the equator?
Sunlight hits at a steep angle and has a greater angle.
300
What causes gravity's strength?
Two objects and their masses.
300
As the earth rotates, a ________ tide stays at the side of earth facing the moon.
As the earth rotates, a *HIGH* tide stays at the side of earth facing the moon.
400
What is revolution?
What is the movement o fan object around another object?
400
What is visible in partial Solar eclipses?
Part of the sun is visible.
400
Why does the earth have seasons?
Earths axis is tilted and revolves around the sun.
400
What keeps everything from crashing into each other?
Inertia.
400
What produces a neap tide?
The sun's pull at right angles to the moon's pull.
500
What is universal law of gravitation?
What is every object in the universe attracts every other object?
500
What causes moon phases?
The moon doesn't really phase, but it appears to be because of the way the moon travels around the earth, and the earth traveling around the sun.
500
What would happen if earth's poles were straight up and down?
There would be no seasons.
500
What did Newton say about the earth being in orbit around the sun and the moon in orbit around the earth?
Newton said that inertia and orbital motion keep the earth in orbit around the sun and the moon in orbit around the earth.
500
What is the difference between rotation and revolution?
When an object turns around an internal axis it is called a rotation. When an object circles an external axis it is called a revolution.