Question 1
2 / 2 pts
The Crab Nebula is what?
The first place we've discovered extraterrestial life
A planet surrounded by gas and dust
... [Show More]
An unknown element in our solar system
Correct!
Leftover from an exploding star
Question 2
2 / 2 pts
What is meant when we say astronomy and other sciences are a progress report?
None of these answers is correct.
Correct!
Scientific ideas can change and adapt to new discoveries
Astronomy and other sciences are no more reliable than any other system of knowledge.
Science tells us the absolute truth about things.
Question 3
0 / 2 pts
What is the preferred language of science?
You Answered
English
German
Correct Answer
Mathematics
Latin and Greek
Question 4
2 / 2 pts
What is a light year?
Correct!
A unit of distance
A unit of time
A part of the fourth dimension
The time it takes light to travel from the Sun to the Earth
Question 5
0 / 2 pts
Which is closest to the Earth?
You Answered
Mars
The Sun and the Moon are both the same size, therefore the same distance.
Correct Answer
The Moon
The Sun
Question 6
0 / 2 pts
How fast does the Earth move around the Sun?
99,700 feet per second
Correct Answer
All of these are correct
68,000 miles per hour
You Answered
110,000 kilometers per hour
Question 7
0 / 2 pts
If we built a model of the Solar System with the Sun the size of a basketball, how far away would we have to put the nearest star, to keep the same scale correct?
Correct Answer
4000 miles
Two football fields
4000 feet
You Answered
As far away as the Moon.
Question 8
0 / 2 pts
How long ago was the closest galaxy to our galaxy discovered?
Correct Answer
1993, the Sagitarrius dwarf galaxy
You Answered
By the ancient Greeks: the Andromeda Galaxy
1930, the same year as Pluto: the Plutonic galaxy.
In the 1500s, by Magellan's crew: the Magellanic Clouds
Question 9
2 / 2 pts
Hydrogen is the most abundant element in the universe. Helium is second. What is the third?
Carbon
H2O
Nitrogen
Correct!
Oxygen
Question 10
0 / 2 pts
If the whole history of the universe was collapsed down to one calendar year, when would our galaxy have been formed?
Correct Answer
Mid-May
December 25
You Answered
January
September
Question 11
0 / 2 pts
Where is the zenith?
Both the North and South Poles
Over the equator
Correct Answer
Always straight up, directly overhead
You Answered
The North Pole
Question 12
2 / 2 pts
Where is the horizon?
All around the equator.
Correct!
90 degrees from the zenith, in every direction
90 degrees from the poles.
All around the celestial sphere.
Question 13
2 / 2 pts
What do we call the region of stars in the night sky that never sets?
The north region
The Big and Little Dippers
The high region
Correct!
The circumpolar region
Question 14
0 / 2 pts
Which one is not a constellation on the ecliptic line?
Correct Answer
Orion
You Answered
Ophiuchus
Leo
Taurus [Show Less]