Astronomy Final!

Front 1

Which of the following types of electromagnetic radiation has the shortest wavelength?

Back 1

x-rays

Front 2

Lunar Eclipses Occur at the time of a ___ moon

Back 2

full

Front 3

Solar Eclipses occur at the time of a ____ moon

Back 3

new

Front 4

12. As a hot solid, like a light bulb filament, is decreased in temperature the peak of it's emission spectrum shifts toward,

Back 4

longer wavelengths

Front 5

The Earth is furthest from the Sun around

Back 5

July 4th

Front 6

Neap tides occur

Back 6

during the first and third quarter of the moon

Front 7

Short-Period comets are believed to originate in the ____

Back 7

Kuiper Belt

Front 8

Meteor showers usually occur when Earth passes through

Back 8

A comet's orbit

Front 9

A peice of space "rock" which hits the Earth's surface is called a

Back 9

Meteorite

Front 10

Where do most scientists think the killer asteroid struck?

Back 10

Yucatan peninsula in Mexico

Front 11

"Splosh" impact craters on its surface

Back 11

Mars

Front 12

Two small, odd-shaped, moons that may be captured asteroids orbit this body

Back 12

Mars

Front 13

This body is the most volcanically active in our solar system

Back 13

Io

Front 14

Prominences always connect

Back 14

two sunspots

Front 15

In which region of the sun does nuclear fusion take place?

Back 15

The core

Front 16

When our sun becomes a bluish-white dwarf, its "surface" temperature will go __ and its luminosity will go __-.

Back 16

up, down

Front 17

Which type of Em radiation typically penetrates best through interstellar dust?

Back 17

21 cm radiation

Front 18

Which of the following will our sun never be at any time during its life?

Back 18

Type 1 Supernova

Front 19

Interstellar Matter is made up of

Back 19

Individual atoms & molecules

Front 20

Single Stars with a mass exceeding 8 solar masses will eventually become...

Back 20

type II supernova

Front 21

The red&blue shift of star light is caused by

Back 21

The Dopler Effect

Front 22

A neutron star will continue to collapse into a black hole if it's remaining mass is about __ times that of the sun.

Back 22

3

Front 23

A hypernova is proposed by some astrophyscicists as a possible explaination for the huge nergy emission of

Back 23

gamma-ray bursters

Front 24

A large red shift in astronomy implies that the object is

Back 24

very distant

Front 25

The distribution of globular clusters near the Milky Way is almost ___ in shape.

Back 25

spherical

Front 26

Which type of variable star has a luminosity that is almost constant with changing rate of pulsation?

Back 26

RR lyrae variables

Front 27

The diameter of the Milky Way galazxy is approximately

Back 27

30 KPC

Front 28

So far, all known forms of life use the element ____ as the basic foundation of their organic chemistry.

Back 28

carbon

Front 29

___ is considered to be the nexxt most probable place in our solar system to find life, after the Earth, of course!

Back 29

mars

Front 30

Which of the following planets has the shortest period of orbital motion?

Back 30

venus

Front 31

Scientific study and measurement of the wavelengths and frequencies emitted and absorbed by matter is called _____

Back 31

spectroscopy

Front 32

The time for the moon to spin on its axis is ___ to its orbital period.

Back 32

Equal too

Front 33

It was discovered that Eros has

Back 33

large impact craters that indicate it is very "solid" and not easily fragmented.

Front 34

Which is furthest from the sun?

Back 34

The oort cloud

Front 35

In tilt of its axis and rate of spin, this body is almost the twin of mars

Back 35

Earth

Front 36

Largest temperature variation

Back 36

Mercury

Front 37

Phobos orbits this body

Back 37

Mars

Front 38

The surface of this body displays large scarps, probably caused by rapid cooling

Back 38

mercury

Front 39

The proton-proton chain that occurs in the sun is an example of

Back 39

fusion of hydrogen nuclei into helium

Front 40

In which region of the sun does fusion take place?

Back 40

The Cored

Front 41

Spectral and luminosity class in the sun

Back 41

G2V

Front 42

Which of the following is furthest from the sun?

Back 42

A typical quasar

Front 43

At some point in its life, the heaviest fusion fuel that our Sun is expected to use is

Back 43

helium

Front 44

A typical supernova II emits most of its radiation over a period of about ___

Back 44

6 months

Front 45

Millisecond pulsars rotate fast gained from

Back 45

infalling material

Front 46

"Cross over point" is estimated to have occured ___ years after the big bang.

Back 46

3,000

Front 47

What is the evidence so far to support the Big Bang model?

Back 47

Cosmic microwave background & hubbles law

Front 48

In seti research, what is the "water hole"?

Back 48

A quiet region of the EM spectrum