ASTR 101 2020W - Midterm 1 Review

Question 1

A great circle is the largest diameter circle that can be drawn on the surface of a sphere.

Accepted Answer

True

Question 2

Rank the orbital period (from shortest to longest) of the planets:

Accepted Answer

A D B E C

Question 3

What's the equation for Eccentricity?

Accepted Answer

e=\sqrt{1-\left(\frac{b}{a}\right)^2}

Question 4

Your Latitude is the angle between you and a Celestial Pole.

Accepted Answer

False

Question 5

What is a sidereal hour?

Accepted Answer

A sidereal day divided into 24 sections

Question 6

There are no satellites (moons) larger than a planet in the solar system.

Accepted Answer

False

Question 7

Earth is the only planet in the solar system with one moon.

Accepted Answer

True

Question 8

Which is not a "debris system"?

Accepted Answer

Comet Cloud

Question 9

It's the summer solstice. Describe the Sun's path on this day.

Accepted Answer

The Sun will be travelling 23.5 degrees above the CE

Question 10

In Astrology, which of the following was not a planet in the ancient times?

Accepted Answer

Earth

Question 11

Your latitude is 41° N, what is the greatest altitude of the celestial equator in your sky?

Accepted Answer

49°

Question 12

Which of the following is not in the Ptolemaic Model?

Accepted Answer

Focal Point

Question 13

True or False: Astrology and Astronomy were never related.

Accepted Answer

False

Question 14

Galileo was the first person to point a telescope at the skies.

Accepted Answer

True

Question 15

What Right Ascension is the Sun at during the Vernal Equinox?

Accepted Answer

0h

Question 16

Your latitude is 41° N, at what azimuth is the celestial equator at its greatest altitude in your sky?

Accepted Answer

180°

Question 17

What was the main reason that geocentrism lasted so long?

Accepted Answer

No apparent parallax among the stars

Question 18

True or False: Tycho embraced the Heliocentric model

Accepted Answer

False

Question 19

Pluto is no longer classified as a planet because Charon, it's main satellite, is so massive that they orbit each other.

Accepted Answer

False

Question 20

What declination is the sun at during the September Equinox?

Accepted Answer

0

Question 21

What is true regarding Copernicus's Model?

Accepted Answer

Predictions not really better than the Ptolemaic model

Question 22

What is the "b" on this diagram?

Accepted Answer

Semi-Minor Axis

Question 23

Which historical figure determined that the NCP shifts with time?

Accepted Answer

Hipparchus

Question 24

True or False: Ptolemy's model was based on physics that was known back then.

Accepted Answer

False

Question 25

What latitude is the Tropic of Capricorn?

Accepted Answer

23° 26'S

Question 26

Which of the following pairings are correct?

Accepted Answer

Altitude-Azimuth

Question 27

Your latitude is 41° N, what is the greatest altitude of the NCP in your sky?

Accepted Answer

41°

Question 28

Which planet pairings are the most similar in size?

Accepted Answer

Uranus-Neptune

Question 29

Which two pairings are correct?

Accepted Answer

Aphelion-Perihelion, Apoapsis-Periapsis

Question 30

True or False: The Copernican Model was the first heliocentric model.

Accepted Answer

False

Question 31

If this diagram was the orbit of a comet, and the Sun was on F1, what would be on F2?

Accepted Answer

Nothing

Question 32

True or False: Some stars come from Arabic culture and studies.

Accepted Answer

True

Question 33

True or False: Kepler used Tycho's data to discover the three laws of planetary motion.

Accepted Answer

True

Question 34

What is a nautical mile?

Accepted Answer

1 minute of arc on the Earth's surface

Question 35

Which statement is not part of IAU's definition of a planet?

Accepted Answer

The planet has to clear it's orbital path (including small asteroids)

Question 36

Which planet has the longest orbital period?

Accepted Answer

Neptune

Question 37

What's the approximate Earth-Sun distance (AU) measured in light travel time?

Accepted Answer

8 minutes

Question 38

Where is the Zenith?

Accepted Answer

Directly above the observer

Question 39

What did Thomas Harriot draw?

Accepted Answer

Sunspots on the sun, The Moon

Question 40

Which of the following is not a measure of angle?

Accepted Answer

Parsec

Question 41

Which of the following is true regarding challenges to the Ptolemaic Model?

Accepted Answer

Copernicus started to introduce new ideas

Question 42

How long is a parsec? (in AU)

Accepted Answer

206265 AU

Question 43

If the planet's semi-major axis was 9AU, what would it's period be?

Accepted Answer

27 years

Question 44

The seasons are caused by Earth's obliquity.

Accepted Answer

True

Question 45

Which historical figure determined the radius of the earth?

Accepted Answer

Eratosthenes

Question 46

The Azimuth rotates "westward" of true north.

Accepted Answer

False

Question 47

What latitude is the Tropic of Cancer?

Accepted Answer

23° 26'N

Question 48

The farthest known dwarf planet is 123.5AU away. With the model ratio of 30m/1AU, what's the scaled distance?

Accepted Answer

3700 meters

Question 49

Which planet has a greater elongation at their respective greatest elongations?

Accepted Answer

Venus

Question 50

If a Model Ratio was 30m/1AU, and Saturn has a semi-major axis of 9.6AU, what would it's scaled distance be?

Accepted Answer

288 meters

Question 51

Which is one of Kepler's Laws?

Accepted Answer

Planets follow ellipses, with the Sun at one focus

Question 52

s m a i s m r m i l m e p o e t a l e u m i b u n e n u g t t a u i r a s.

Accepted Answer

"I have observed the highest planet tri-form."

Question 53

True or False: During a Solstice, the Sun follows the Celestial Equator.

Accepted Answer

False

Question 54

Your latitude is 35 N°, what declinations would a star to never rise at your latitude?

Accepted Answer

-90 to -55 deg

ASTR 101 2020W - Midterm 1 Review

Questions 54

ASTR 101 2020W - Midterm 1 Review

Questions 54