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Exam 1 clicker questions
Ch. 1-5
46
Astronomy
Undergraduate 2
02/08/2012

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Cards

Term
A crucial and powerful feature which distinguishes a scientific theory from other kinds of theories is?
Definition
Makes testable predictions, allowing it to be falsified
Term
Is our atmosphere transparent during the day?
Definition
Yes
Term
During the day, can you see any celestial objects?
Definition
Yes
Term
Can you see the moon during the daytime?
Definition
Yes
Term
Can you see stars during the daytime?
Definition
Yes, but not with the naked eye
Term
You hear on the new that the moon will soon be in a tight grouping with Venus and Jupiter. For how many nights will you be able to see all really close?
Definition
One night
Term
Which object in the question above moves away the fastest?
Definition
The moon
Term
If you could see stars during the daytime, the picture below shows what part of the sky would look like on a day i July. The sun is among the constellation Gemini at sunrise the next day, near which constellation would you expect the sun to be located?
Definition
Gemini
Term
From where on Earth do stars appear to move in circle centered directly overhead?
Definition
North and South poles
Term
Of the year, month, week, and day, which is not "natural", based on orbital?
Definition
Week
Term
How long does it take the sun to appear to move through the apparent pattern of stars and back to its current position?
Definition
One year
Term
If it is winter in Tuscaloosa, what season is it in Australia?
Definition
Summer
Term
If it is Summer in Tuscaloosa, what season is it in Chile & Argentina?
Definition
Winter
Term
What causes the earth's seasons?
Definition
The earth's rotational tilt relative to the sun
Term
Where on earth can you (at least sometimes) experience 12 hours each of day and night?
Definition
Everywhere
Term
When is the sun directly overhead in Tuscaloosa?
Definition
Never
Term
What is the main light source for the moon?
Definition
The sun
Term
How much of the entire moon is illuminated by the sun at any one time?
Definition
Half of it
Term
How much of the entire earth is illuminated by the sun at any one point?
Definition
Half of it
Term
On earth, do we only see one side (face) of the moon facing us?
Definition
Yes
Term
Does the moon rotate?
Definition
Yes, once per month.
Term
Can you see the sun at noon in Tuscaloosa?
Definition
No
Term
Which phases of the moon are caused by the earth's shadow?
Definition
None of them
Term
Do we have solar and lunar eclipses each once a month?
Definition
No, the moon's orbit is tilted
Term
Which kind of eclipse is seem more often from Tuscaloosa?
Definition
Total lunar eclipse
Term
Full moon high in the ski in Tuscaloosa, about what time is it?
Definition
Midnight
Term
What was the physical basis of Kepler's orbital laws?
Definition
There was no physical basis, they were just mathematical descriptions
Term
Whose model of the solar system was most accurate?
Definition
Kepler's
Term
An SUV is pushed over the edge of GL Hall at the same time as a marble. Which hits the ground first?
Definition
The marble and SUV land at the same time
Term
The decisive influnce in causing out historical shift from an earth-centered view of the universe to sun-centered view of our solar system was..
Definition
The relative accuracy of Kepler's
Term
Can you feel weightless under the influence of gravity?
Definition
Yes, in freefall
Term
If you suddenly found yourself on a mountaintop, how would your weight compare to what is it now?
Definition
It is reduced
Term
If you shrank the earth to half its size, keeping its mass the same, what happens to your weight?
Definition
It is increased
Term
The ___ photons are, the ___ energy & ___ vibration they have.
Definition
Smaller, more, faster
Term
X-rays are ___ energetic and travel through space with a speed ___ radio waves.
Definition
More; Just as fast as
Term
What does E=mc^2 mean when applied to light?
Definition
Photons, although mass-less they have energy
Term
The vast majority of the mass in normal matter is
Definition
In the atomic nuclei at the very center of atoms
Term
The force resposible for keeping quarks together in protons and neutrons is the..
Definition
strong nuclear force
Term
Where on Earth can you experience 12 hours of each day and night every day?
Definition
Only along the equator
Term
The force responsible for keeping atomic nuclei stuck together is the..
Definition
Strong nuclear force
Term
The force responsible for keeping electrons stuck to atomic nuclei is the..
Definition
Electromagnetic force
Term
The force responsible for keeping atoms stuck together in molecules is the..
Definition
Electromagnetic force
Term
The force responsible for keeping people, chairs, and pens held together is..
Definition
Electromagnetic force
Term
What kind of radiation spectrum is emitted by a hot solid?
Definition
Continous
Term
A thermal spectrum is a type of __ spectrum
Definition
Continuous
Term
Consider a red star and a blue star are of the same size. Which gives off more light energy?
Definition
The blue star
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