Show:
12.1 The Night Sky
12.2 The Earth-Moon System
12.3 Our Solar System
12.4 A Closer Look at the Planets
12.5 The History of Astronomy
100
Where do circumpolar usually occur?
In the Northern hemisphere
100
If the dark side increases from right to left, what kind of phases is the moon in?
Waning phases
100
Which two things does the rotating nebulat theory support?
formation of outer planets and inner planets
100
What is astronomical unit?
It is the distance from Earth to Sun
100
What is the use of the astrolabe?
Charting the sky
200
What is the specialty of equinoxes?
the number of hours that the Sun is above the horizon and below the horizon is equal
200
Where should the new moon be positioned during a solar eclipse?
at the nodes
200
What did the rock and soil from the moon support?
The Big Splash theory
200
What are two out of five characteristics of terrestrial planets?
high density slow rotation solid metal cores solid surface no rings
200
What is so special about Ptolemy's celestial sphere?
It is geocentric
300
Why is it wrong to say that seasons are attributed to Earth's elliptical orbit?
Season is affected by the tilt of Earth's axis
300
What causes the ocean bulging to the Moon's direction?
The gravitational pull of the Moon on Earth
300
What are the three things included as minor bodies?
Asteroids Meteroids Comets
300
What makes Venus the brightest star in the sky other than Sun and Moon?
Its closeness to Earth and thick atmosphere that can reflect sunlight
300
According to Kepler's Law of Planetary Motion, what affects the speed of a planet's orbit?
The distance from the sun
400
What is the difference between rotation and revolution?
Rotation is the spinning of an object around an axis, while revolution is a motion around other object
400
Why can't we see the new moon?
The side that is illuminated by the sun is not facing us.
400
What is the difference between Asteroids and Comet?
Comet are chunks of matter from the outer reaches while Asteroid are rocky and metallic object around the asteroid bell
400
What enables the gas giants to pull more debris and moons into its orbit?
What is They have large mass result in stronger gravitational field
400
How did Copernicus improved Ptolemy's Celestial model?
By switching the position of the Earth and the Sun
500
What is one effect given in the book due to recession?
The changing position of the North Celestial Pole
500
What is left during a total solar elipse?
The corona, the outer atmosphere of the Sun
500
What froms the solar system?
The rotating, collapsing nebula
500
What are three unifying characteristics of all planets?
1.orbit in same direction 2.rotate about an axis 3.contain hydrogen, helium, oxygen, and carbon
500
What discovery sparkled Braches's new idea about a constantly changing universe?
his discovery of supernova