What is the study of the moon, stars, and other objects in space called?
Astronomy
What is the study of the moon, stars and objects in space?
100
Suppose you moved two objects farther apart. How would this affect the force of gravity between those objects?
The force of gravity between them would decrease.
100
How would the seasons be different if the Earth were not tilted on its axis?
There would be no seasons.
100
When the sunlit side faces away from Earth, it is called a ......
New Moon
100
The craters on the moon were caused by ...........
meteoroids
200
The Earth's orbit is not quite circular, but an
Ellipse
200
The amount of matter in an object is called its?
Weight
200
The autumnal equinox marks the beginning of fall. What day and month does it occur?
September 22
200
When the moon passes directly between Earth and the sun, blocking sunlight from Earth.
Solar Eclipse
200
Name three physical features ,of the moon's surface ,that can be seen by a telescope.
Craters, highlands, maria
300
What is the amount of matter in an object?
Mass
300
True or false: The force that attracts all objects toward each other is called intertia.
False
300
Which two months does the year have a solstice?
June and December
300
When Earth's shadow falls on the moon, what does the shadow cause?
A lunar eclipse
300
List three characteristics of the moon.
Size, density, temperature, atmosphere, water
400
Galileo saw that the moon's surface is marked by large round pits called
Craters
400
Newton concluded that two factors combine to keep Earth in orbit around the sun and the moon in orbit around Earth. What are they?
Inertia and gravity
400
Why is it warmer near the equator than near the poles?
Near the equator, sunlight strikes Earth's surface more directly and arrives at a steep angle, and is more spread out near the poles.
400
Why does the moon have phases?
By changes in the relative positions of the moon, Earth, and the sun
400
Most scientists believe in the collision-ring theory. Describe what it is.
A planet-sized object collided with Earth to form the moon. Material was ejected and formed a ring. Gravity caused this material to combine to form the moon
500
Earth moves through space in two major ways ;
Rotation and Revolution
500
The strength of the force of gravity between two objects depends on what two factors?
The masses of the objects and the distance between them.
500
Why does the Earth have seasons?
Because its axis is tilted as it revolves around the sun.
500
What type of eclipse occurs when Earth's umbra covers the moon?
Total lunar eclipse
500
How much smaller is the moon compared to the Earth?