Astr-104

Front 1

Equation for Angular Diameter

Back 1

q = 57.30 Diameter / distance

Front 2

Equation for Speed

Back 2

Speed = Distance x Time

Front 3

What is a degree made up of, and how many? What is that made up of?

Back 3

1 degree = 60 arcminutes
1 arcminute = 60 arcseconds

Front 4

Equation for Circumference

Back 4

C = 2 x 3.14 x radius

Front 5

Scientific Notation: Process for Multiplication and Division

Back 5

You multiply and divide the constants, and either add (multiplication) or subtract (division) the exponents.

Front 6

Scientific Notation: Process for Addition and Subtraction

Back 6

You have to make the powers of ten the same, then just add or subtract the constants.

Front 7

The white light images produced by Galileo's telescopes were tinged with color because of

Back 7

chromatic aberration

Front 8

Sites for new large ground-based telescopes are selected primarily on the basis of least amount of atmosphere (high alititude), dry, and elevation above sea-level, but not

Back 8

proximity to universities and research centers

Front 9

A charge-coupled device (CCD) is a(n):

Back 9

electronic camera that converts incoming light into electronic signals.

Front 10

Basic unit of length in the metric system is the

Back 10

meter

Front 11

Which unit of measure, often used by astronomers, is not a SI unit?

Back 11

kg/(m cubed)

Front 12

If the Sun is just setting, and the Moon is at its full phase, the Moon will be

Back 12

on the easter horizon

Front 13

The time required for the Moon to return to the same position relative to the stars is approx.

Back 13

28 days

Front 14

When the Moon is lying on a line directly b/w the Earth and the Sun, not close enough to cast a full shadow on the Earth, we have a(n)

Back 14

annular eclipse

Front 15

A Star that appears brighter to an observer on Earth has a lower

Back 15

apparent magnitude

Front 16

A Star that is 100x fainter than another star at the same distance will be

Back 16

5 magnitudes dimmer

Front 17

A star that is 2 magnitudes brighter when compared with another star @ the same distance is about

Back 17

6x more luminous

Front 18

Who is given credit for idea that Earth is not center of universe?

Back 18

Copernicus

Front 19

THe closer a planet, asteroid, or comet is to the Sun in its orbit, the faster it moves. This is a consequence of

Back 19

The Law of Equal Areas

Front 20

Which is the only planet whose orbit is significantly tilted with respect to the ecliptic?

Back 20

Pluto

Front 21

The Earth's weather occurs in the

Back 21

troposphere

Front 22

Most of the rocks found on the Moon are

Back 22

igneous

Front 23

The surgace of Venus shows many familiar features, but no

Back 23

oceans

Front 24

The known Kuiper belt objects have orbital semimajor axes in the approx. range:

Back 24

30 to 50 AU

Front 25

The part of a comet composed of fine solid particles release from the ices of the nucleus as the vaporize is the

Back 25

coma

Front 26

Most meteorites found after observing their fall are made primarily of

Back 26

iron

Front 27

The length of its semimajor axis indicates that Pluto is, on average, ________ the Sun than Neptune

Back 27

farther from

Front 28

Three Criteria that Scientific Theory must Uphold

Back 28

1. Must be consistent with known facts through observaion and experimentation.
2. Capable of making a prefiction both in the past and future.
3. Satisfy Occan's Razor that mature is simple.

Front 29

What is the hardest and most common thing astronomers do ?

Back 29

Measure distance

Front 30

What are the five planets the ancients saw?

Back 30

Mercury, Venus, Mars, Jupiter, and Saturn.

Front 31

Celestial objects not visible to ancients

Back 31

asteroids, interstellar dust and gas, galaxies, interplanetary dust.

Front 32

Celestial obhects visible to ancients

Back 32

stars, Earth's Moon, planets, comets, meteors

Front 33

How many official constellations are there?

Back 33

88

Front 34

Name the kinds of electromagnetic radiation in order of wavelength (large to small)

Back 34

radio, infrared, visible, ultraviolet, x-rays, gamma rays

Front 35

What is the theory that states that light is made up of a steady stream of particles?

Back 35

The Corpuscular Theory by Newton

Front 36

What is the Wave theory?

Back 36

There is a similarity between light and water waves, and that light consists of waves.

Front 37

How is info. about the universe conveyed?

Back 37

By its light.

Front 38

Define spectrum, spectroscopy, and spectrograph

Back 38

Spectrum- (Newton) divides light into different wavelengths.
Spectroscopy- the science of analyzing the spectrum.
spectrograph- the instrument that spreads out the light.

Front 39

What is the speed of light?

Back 39

3 x 10 to the 8 m/s

Front 40

What is the equation to determine the speed of light?

Back 40

& x f = c
(f being the frequency in Hz or MHz-radio)

Front 41

What is Kepler's 3rd Law?

Back 41

P squared = a cubed

Front 42

What is the luminosity equation?

Back 42

L = R squared x T to the 4th

Front 43

LGP Equation

Back 43

(D/d) squared

Front 44

The colder the object, the ________ the wavelength

Back 44

longer

Front 45

What is Wein's law

Back 45

& max (m) = 0.0029 / T (k)

Front 46

How do you convert F to C?

Back 46

T (in F) = 9/5 C plus 32

Front 47

What is Newton's version of Kepler's 3rd Law?

Back 47

(m plus M)p squared = a cubed

Front 48

What is Newton's 2nd law?

Back 48

Force = mass x acceleration

Front 49

Name the planets in order from the Sun

Back 49

Mercury, Venus, Earth, Mars (Terrestrial) Jupiter, Saturn, Uranus, and Neptune (Jovian)

Front 50

What are Galilean Moons of Jupiter, nearest to farthest? In order of size?

Back 50

Io, Europa, Ganymede, Callisto (I Eat Green Carrots)

Ganymede (largest in solar system), Callisto (3rd largest in solar system), Io (4th largest in solar system), Europa (6th largest in solar system).

Front 51

What is the Roche limit?

Back 51

The Sun has no planets inside this limit. Planets have no natural large moons inside this limit.

Front 52

Advantages and Disadvantages of Orbital telescopes

Back 52

advantages- better resolution because no atmosphere

disadvantages- expensive and hard to access for repairs.

Front 53

What is the magnitude table?

Back 53

1- 2.5
2- 6.3
3- 16
4- 40
5- 100

Front 54

What are the two terms for Earth-centered and Sun-centered ?

Back 54

Geocentric/ Ptalomaic and Heliocentric

Front 55

What is our modern calendar system?

Back 55

Gregorian calendar

Front 56

What is the heaviest part of the comet? is it large or small?

Back 56

The nucleus, it is small

Front 57

How many tails on the comet? What are they?

Back 57

Two tails (one gas, one dust).

Front 58

When is tide weakest? Strongest?

Back 58

New Moon, Full Moon

Front 59

What is Pluto?

Back 59

A Dwarf Planet

Front 60

What are light particles called? Does it have continuous energy?

Back 60

Photons; no.

Front 61

Describe the inverse relationship between red and blue light and their wavelengths, temperatures, and frequency.

Back 61

Red photons- longer wavelength, lower temperatures, lower frequency.

Blue photons- shorter wavelength, higher temperatures, higher frequency.

Front 62

What is the Stefan-Boltzmann Law?

Back 62

Total Energy Radiated Per Second per Square Meter (Area) is proportional to the fourth power of the temperature:

E = & T to the 4th

Front 63

Name the phases of the Moon

Back 63

New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, Waning Crescent