Astronomy 1040

Where do scientists believe the hydrogen and helium we have today come from? How about the elements heavier than helium? (Ch.1)

The Big Bang, Stars

Which of the following best represents the current status of science on the origin of the universe? (Ch.1)

The best understanding of scientists is that the universe began in the Big Bang.

We see the moon half lit in the morning. What is its phase? (Ch.2)

Third Quarter.

If the news reports there will be a lunar eclipse tomorrow night then what phase is the Moon tonight? (Ch.2)

Waxing Gibbous

The sun is a(n) __________ star. (Ch.1)

above average

Relative to the stars, the Sun appears to move _______ and the Moon appears to move ________. (Ch.2)

eastward, eastward

Science has been more successful at determining the truths of the natural world than other fields like philosophy or religion due to a greater reliance on the... (Ch.1)

eye.

The Sun is furthest north on the (Ch.2)

summer solstice.

An astronomical unit (AU) is..... (Ch.1)

the Earth's average distance from the Sun.

The star Betelgeuse in the constellation of Orion is about 600 light years away from us. If it were to explode tonight then ...(Ch.1)

we wouldn't see the explosion until about 600 years from now.

Residents of Brasilia (16° S Lat) can see a ________ sun.Residents of Longyearbyen (78° N Lat) can see a ________ sun. (Ch.2)

zenith, midnight

If due north is 0° azimuth angle and due east is 90° azimuth angle, what would be the azimuth angle of South-East? (Ch.2)

135°.

What's the scientific age of the universe? of the Earth? (Ch.1)

14 bil yrs, 4.5 bil yrs.

If an object seen at the horizon is 0° altitude angle, and your zenith is 90° altitude angle, then what would be the altitude angle of an object 1/3 of the way up?(Ch.2)

30°.

Which of the following correctly lists our "cosmic address" from small to large? (Ch.1)

Earth, SS, MWG, Local Group, Local Supercluster, universe.

For which lunar phase is the moon up only during the day? (Ch.2)

New

When does the first quarter moon rise? (Ch.2)

Noon

Scientists ignore insignificant factors in their models due to an application of the __________ principle. (Ch.1)

Occam's Razor

The center of the galaxy is towards which constellation? (Ch.2)

Sagittarius.

Which of the following would constitute extraordinary evidence? (Ch.1)

Seeing it for yourself

Who was the first person to successfully predict a solar eclipse? (Ch.2)

Thales.