Astronomy Exam Chapters 1-3

Front 1

The path in the sky followed by the zodiac constellations, Sun, Moon and Planets is known as

Back 1

Ecliptic

Front 2

What is not true about Polaris?

Back 2

It is the brightest star in the sky

Front 3

Starting point for the measurement of declination is

Back 3

Vernal Equinox

Front 4

When is the Earth closest to the Sun?

Back 4

January

Front 5

The spinning of a planet on its axis is known as

Back 5

Rotation

Front 6

What best describes a theory?

Back 6

Hypothesis assumed for the sake of arguement

Front 7

The tilt on the Earths axis will be what during our lifetime

Back 7

Unchanging

Front 8

Constellations are stars that are together in space (T/F)

Back 8

False

Front 9

The location on the horizon where the Sun appears to rise ____ throughout the year

Back 9

Changes

Front 10

The name given to the huge, hollow, dome of the sky that surrounds the Earth

Back 10

Celestial sphere

Front 11

The seasons are caused by

Back 11

The angle that sunlight strikes the Earth

changes due to our axis tilt

Front 12

The axis of Earths rotation is tilted by

Back 12

23.5 degrees

Front 13

What phase is the Moon during a lunar eclipse?

Back 13

Full

Front 14

When a planet passes between us and the Sun, we have a

Back 14

Transit

Front 15

The precession of the Earth's axis takes how many years?

Back 15

26,000

Front 16

What is a waxing moon?

Back 16

Moon is becoming more lit each night

Front 17

During a solar eclipse, the moon comes between the Sun and the Earth (T/F)

Back 17

True

Front 18

The motion that occurs when an object circles about a central object such as a planet orbiting the Sun is know as

Back 18

Revolution

Front 19

The location where the Sun crosses the celestial equator is known as the

Back 19

Equinox

Front 20

The location where the Sun halts its N or S movement on the horizon and reverses direction is known as the

Back 20

Solstice

Front 21

The siderial day, measured by the stars, is ___ than the solar day

Back 21

4 minutes shorter

Front 22

What does the term equinox mean?

Back 22

Equal day and night

Front 23

The tilt of the Earths axis is ___ during the course of the year

Back 23

Constant

Front 24

What happens when the Moon crosses into the Earth's shadow

Back 24

Lunar Eclipse

Front 25

What astronomers refer to as seeing, is really

Back 25

Turbulence in the atmosphere

Front 26

Which is the longest wavelength Electromagnetic radiation?

Back 26

Radio

Front 27

The space telescope that detects infrared is

Back 27

Spitzer

Front 28

The space telescope that detects X-Rays is

Back 28

Chandra

Front 29

This Telescope is going to replace the Hubble in 2018

Back 29

James Webb

Front 30

This man's double slit experiment proved that light had a wave nature

Back 30

Young

Front 31

A telescope with a diameter of 6" will have ___ the light gathering power as a telescope whose diameter is 2"

Back 31

9 Times

Front 32

Which is not a unit used to determine the wavelength of light?

Back 32

Kilometers

Front 33

This is a type of defect in mirrors

Back 33

Spherical Aberration

Front 34

Einsteins explanation of the photoelectric effect required that light be

Back 34

A particle

Front 35

The peak color in the blackbody curve for an object tells us the objects

Back 35

Temperature

Front 36

A wave with long wavelength will have what kind of frequency?

Back 36

Low

Front 37

Which unit is used to measure frequency?

Back 37

Hertz

Front 38

What is collected by today's astronomers that allows them to see behind dust clouds in space?

Back 38

Infrared

Front 39

What do we call the ability of a telescope to separate a blob that looks like one star into two stars?

Back 39

Resolution

Front 40

The ability of a telescope to separate close objects is known as

Back 40

Resolution

Front 41

The light gathering power of a telescope depends on the

Back 41

diameter of the lens or mirror

Front 42

The type of telescope that uses lenses as the primary imaging device is a

Back 42

refractor

Front 43

Which is the highest energy Electromagnetic radiation?

Back 43

Gamma rays

Front 44

This new telescope technique adjusts the collected light from a star a 1000 times a second to correct for atmospheric turbulence

Back 44

Adaptive Optics

Front 45

The lens defect that creates an image that is reddish on one ride and blueish on the other is known as

Back 45

Chromatic aberration

Front 46

The number of waves passing through a point in a given time is known as the

Back 46

frequency

Front 47

This person's Sun-centered model correctly explained retrograde motion

Back 47

Copernicus

Front 48

If an object is not moving with a constant speed, then

Back 48

a force must be acting

Front 49

This motion occurs when a planet appears to move backward for a time in the night sky

Back 49

Retrograde