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Study sets matching "astronomy light telescopes"

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Study sets matching "astronomy light telescopes"

53 terms
Astronomy Test: Telescopes and Light
Telescope
Extended object
Refraction
Reflecting telescope
an optical instrument designed to make distant objects appear…
3-d object
Light/radio waves/etc. being deflected in passing obliquely t…
A telescope that uses mirrors to focus light
Telescope
an optical instrument designed to make distant objects appear…
Extended object
3-d object
13 terms
Astronomy: Telescopes and Light Vocab
Electromagnetic Radiation
Wavelength
Crest
Trough
Energy transported by waves
Length of a complete cycle
Top of a wave
Bottom of a wave
Electromagnetic Radiation
Energy transported by waves
Wavelength
Length of a complete cycle
23 terms
Astronomy: Light and Telescopes
Wavelength
Frequency
Amplitude
What has the longest wavelength and sh…
Distance from one crest or trough to trough
How fast a wave repeats
Height of wave
Radiowaves
Wavelength
Distance from one crest or trough to trough
Frequency
How fast a wave repeats
8 terms
Astronomy: Telescopes and Light
Telescope Functions
Refracting Telescopes
Reflecting Telescopes
Why do we put telescopes in space?
To gather lights from objects in the universe... To see fine det…
Uses lens to focus light
Uses mirrors to focus light (most popular among researchers t…
NOT because its closer to the stars.... We want to get out of Ea…
Telescope Functions
To gather lights from objects in the universe... To see fine det…
Refracting Telescopes
Uses lens to focus light
18 terms
Astronomy: Telescopes and Light
Refractor
Reflector
catadioptric telescope
Newtonian Reflector
advantages: ... -easy to use and reliable... -smaller/portable... -sea…
advantages:... -lower cost per inch of aperture... -excellent for f…
-combines advantages of both lenses and mirrors while limitin…
reflects once before hitting eyepiece
Refractor
advantages: ... -easy to use and reliable... -smaller/portable... -sea…
Reflector
advantages:... -lower cost per inch of aperture... -excellent for f…
14 terms
Astronomy: Telescopes and Light/Wavelengths of Light
Sunburn
Television Signals
TV Remote Signals
Humans
Ultraviolet
Radio
Infrared
Visible
Sunburn
Ultraviolet
Television Signals
Radio
28 terms
Astronomy Telescopes & Light
Who invented telescopes?
For all but about ___% of our history,…
Telescopes allow is to push limits of…
Photography started the astronomical r…
Galileo, they revolutionized astronomy. They allow us to see…
0.1%
Allowing us to see more wavelengths. The human eye is ineffic…
1. Push out further out as you can expose the image for a lon…
Who invented telescopes?
Galileo, they revolutionized astronomy. They allow us to see…
For all but about ___% of our history,…
0.1%
77 terms
Astronomy Test: Lights and Telescopes
Light
What is meant by duality of light?
Describe how light achieves this duali…
Photon
Phenomenon that acts as both an electromagnetic wave and as a…
Light is a photon; both wave/particle-like properties
being a photon, the photon itself is a particle; the set of p…
Individual pieces of light that act as a particle. Can be cou…
Light
Phenomenon that acts as both an electromagnetic wave and as a…
What is meant by duality of light?
Light is a photon; both wave/particle-like properties
23 terms
astronomy light and telescopes
long wavelength
short wavelength
how fast does light travel?
who first determined how fast light tr…
red... can wiggle through objects
blue... can not make it far through anything
186,000 mps or 3x10^8 m/s
danish astronomer ole roemer in 1675
long wavelength
red... can wiggle through objects
short wavelength
blue... can not make it far through anything
40 terms
Astronomy Ch 3: Light and Telescopes
Active Optics
Adaptive Optics
Angular Resolution (resolutin)
Cassegrain Focus
A system that adjusts a reflecting telescopein repsonse to ch…
Primary telescope mirrors that are continuously and automatic…
The angular size of the smallest detail of an astronomical ob…
An optical arrangement in a reflecting telescope in which lig…
Active Optics
A system that adjusts a reflecting telescopein repsonse to ch…
Adaptive Optics
Primary telescope mirrors that are continuously and automatic…
33 terms
Astronomy: Light, Telescope, and Sun
unevenly spaced series of lines of var…
unbroken bands of colors
how many years to a sunspot cycle
a group of telescopes acting as one
bright line spectrum
continuous spectrum
11
array
unevenly spaced series of lines of var…
bright line spectrum
unbroken bands of colors
continuous spectrum
22 terms
Astronomy: Lights and Telescope
Focal Length
Refracting Telescope
Reflecting Telescope
Objective Lens/Mirror
Distance between center of a lens/curved mirror and its focus
Uses a converging lens, not used since 1901 due to cost and c…
Uses a mirror, commonly used today
Largest lens, image-forming object
Focal Length
Distance between center of a lens/curved mirror and its focus
Refracting Telescope
Uses a converging lens, not used since 1901 due to cost and c…
65 terms
Astronomy Quiz light, telescopes, atoms
how can light behave?
light as an electromagnetic wave
diffraction of light
is the speed of light in a vacuum the…
wave... particle ... messenger ... timeless... quantized
changing electric and magnetic fields that travel through spa…
wave behavior
YES
how can light behave?
wave... particle ... messenger ... timeless... quantized
light as an electromagnetic wave
changing electric and magnetic fields that travel through spa…
17 terms
Astronomy Vocabulary: Light and Telescopes (2)
spectroscopy
absorption spectra
emission spectra
continuous spectra
study of the wavelengths and properties of light
continuous spectra passed through a relatively cool gas where…
heated point emits light
separated light into ROYGBIV (incandescent solids)
spectroscopy
study of the wavelengths and properties of light
absorption spectra
continuous spectra passed through a relatively cool gas where…
154 terms
Astronomy Section 3 Light and Telescopes
wave and particle
wavelength
lambda
frequency
light is both a....
the distance betwen successive peaks of a wave
the greek letter representing a wavelength
the number of waves passing a stationary point in one second
wave and particle
light is both a....
wavelength
the distance betwen successive peaks of a wave
39 terms
Astronomy Chapter 3 Light and Telescopes
Active Optics
Adaptive Optics
Angular Resolution
Cassegrain Focus
A system that adjusts a reflecting telescope is response to c…
Primary telescope mirrors that are continuously and automatic…
The angular size of the smallest detail of an astronomical ob…
An optical arrangement in a reflecting telescope in which lig…
Active Optics
A system that adjusts a reflecting telescope is response to c…
Adaptive Optics
Primary telescope mirrors that are continuously and automatic…
10 terms
Astronomy Midterm 1: Light and Telescopes
Refracting
Reflecting
Eyepiece
Chromatic Aberration
A lens focus the light onto the focal plane
Concave mirror focus the light onto the focal plane... - Seconda…
Used to view and enlarge the small image produced in the foca…
Refracting telescopes focus different wavelengths at differen…
Refracting
A lens focus the light onto the focal plane
Reflecting
Concave mirror focus the light onto the focal plane... - Seconda…
20 terms
Astronomy Chapter 3: Light and Telescopes
List the two natures of electromagneti…
What is the bending of light as it pas…
What is the spread of colors called th…
What is the distance between two succe…
Particles and Waves (Photons)
Refraction
Spectrum
Wave length
List the two natures of electromagneti…
Particles and Waves (Photons)
What is the bending of light as it pas…
Refraction
40 terms
Astronomy Ch 3: Light and Telescopes
Active Optics
Adaptive Optics
Angular Resolution (resolutin)
Cassegrain Focus
A system that adjusts a reflecting telescopein repsonse to ch…
Primary telescope mirrors that are continuously and automatic…
The angular size of the smallest detail of an astronomical ob…
An optical arrangement in a reflecting telescope in which lig…
Active Optics
A system that adjusts a reflecting telescopein repsonse to ch…
Adaptive Optics
Primary telescope mirrors that are continuously and automatic…
40 terms
Astronomy Chapter 3 - Light and Telescopes
Active optics
Adaptive optics
angular resolution
Cassegrain focus
A system that adjusts a reflecting telescope in response to c…
Primary telescope mirrors that are continuously and automatic…
The angular size of the smallest detail of an astronomical ob…
An optical arrangement in which light rays are reflected by a…
Active optics
A system that adjusts a reflecting telescope in response to c…
Adaptive optics
Primary telescope mirrors that are continuously and automatic…
24 terms
Astronomy Unit 2 Light and Telescopes
Speed of Light
photon
Wavelength
frequency
3X10^8
particle of light
the length it takes to get from one point back to the same po…
number of wavelengths going by each second
Speed of Light
3X10^8
photon
particle of light
18 terms
Astronomy Chap 6 - Light and Telescopes
Powers of a telescope
Magnifying power
Resolving power
chromatic aberration
1. Light gathering power... 2. Resolving power (resolution)... 3. M…
depends on the ratio of the focal length of the primary mirro…
ability to see separate objects as separate... arc min = 11.6 ar…
color distortion - like a prism. can be corrected but not eli…
Powers of a telescope
1. Light gathering power... 2. Resolving power (resolution)... 3. M…
Magnifying power
depends on the ratio of the focal length of the primary mirro…
16 terms
Astronomy U4: Telescopes and Light
Electronagnetic Radiation
wavelength
crest
trough
The energy transported by electromagnetic waves
length of one complete cycle (crest-crest)
the top of the wavelength
the bottom of a wavelength
Electronagnetic Radiation
The energy transported by electromagnetic waves
wavelength
length of one complete cycle (crest-crest)
55 terms
Astronomy Chapter 6 Lights and Telescopes
Electromagnetic Radiation
Wavelength
Nanometers
Angstrom
Changing electric and magnetic fields that travel through spa…
The distance between successive peaks or throughs of a wave
A unit of length equal to 10⁻⁹m
A unit of distance, often used to measure the wavelength of l…
Electromagnetic Radiation
Changing electric and magnetic fields that travel through spa…
Wavelength
The distance between successive peaks or throughs of a wave
30 terms
Astronomy Exam #1 (Light, Radiation, and Galileo, and Telescopes)
Wavelength =
Frequency
Wavelength and Frequency are _________…
Energy and Frequency are _________ rel…
Color
Rate a wave passes every t (time)
INVERSELY
DIRECTLY
Wavelength =
Color
Frequency
Rate a wave passes every t (time)
Light and Telescopes
light
wavelength
frequency
Amplitude
an electromagnetic wave of energy
the distance between 2 wave peaks
the number of times per second a wave vibrates up and down. S…
the intensity of a wave, measure by a half the height from pe…
light
an electromagnetic wave of energy
wavelength
the distance between 2 wave peaks
13 terms
Light and Telescopes
Electromagnetic Spectrum
Wavelength
Frequency
photon
Includes all forms of electromagnetic radiation; the types of…
The distance between two crests of a wave
In any periodic motion, the number of complete oscillations m…
A bundle of light energy that is emitted as an electron in an…
Electromagnetic Spectrum
Includes all forms of electromagnetic radiation; the types of…
Wavelength
The distance between two crests of a wave
65 terms
Astronomy Exam 2 Review (Historical Astronomy, Light, Telescopes)
Astronomical purpose of Stonehenge
Geocentric
Heliocentric
Aristotelian Universe
when standing in the center, looking northeast, the heel ston…
Earth is at the center of the universe
The Sun is at the center of the universe
geocentric model, 2 parts: imperfect earth, perfect heavens (…
Astronomical purpose of Stonehenge
when standing in the center, looking northeast, the heel ston…
Geocentric
Earth is at the center of the universe
79 terms
Astronomy - Telescopes
What will long wavelength visible ligh…
What is the longest wavelength of ligh…
How do astronomers learn what elements…
What happens as an electron falls from…
A red in color to the average human eye
700nm
Look at the absorption lines in its spectrum
A photon is emitted
What will long wavelength visible ligh…
A red in color to the average human eye
What is the longest wavelength of ligh…
700nm
32 terms
Chapter 5 - Light and Telescopes
Electromagnetic radiation
wavelength
frequency
photon
Electromagnetic radiation (EM radiation or EMR) is the radian…
The distance between successive crests of a wave, especially…
The number of crests of a wave that move past a given point i…
A particle representing a quantum of light or other electroma…
Electromagnetic radiation
Electromagnetic radiation (EM radiation or EMR) is the radian…
wavelength
The distance between successive crests of a wave, especially…
59 terms
Light & Telescopes
wavelength
nanometer
angstrom
photon
The distance between successive peaks or troughs of a wave
A unit of distance equaling one-billionth of a meter (10-9 m)
A unit of distance commonly used to measure the wavelength of…
A quantum of electromagnetic energy that carries an amount of…
wavelength
The distance between successive peaks or troughs of a wave
nanometer
A unit of distance equaling one-billionth of a meter (10-9 m)
15 terms
Light Telescopes
Light Properties
Wave Model
Light can be thought of as an electrom…
Wavelength
-Light is able to transport energy i.e. the Sun warming your…
In this model, diff colors correspond to diff wavelengths or…
wavelength and freq
Spacing between crests (m)
Light Properties
-Light is able to transport energy i.e. the Sun warming your…
Wave Model
In this model, diff colors correspond to diff wavelengths or…
Light and Telescopes
Spectroscopy
Absorption Spectra
Emission Spectra
Continuous Spectra
The study of the wavelengths and properties of light
When a light is absorbed by gas, is the opposite of emission
When a gas is heated to the point that is begins emitting light
Uninterrupted bands of color that are in a series
Spectroscopy
The study of the wavelengths and properties of light
Absorption Spectra
When a light is absorbed by gas, is the opposite of emission
41 terms
Telescopes and Light
telescope
refracting telescope
reflecting telescope
3 main functions of a telescope (most…
a tool used to gather light from objects in the universe
uses a glass lens to concentrate incoming light
uses mirrors to concentrate incoming starlight
gather light... to see fine detail... magnify
telescope
a tool used to gather light from objects in the universe
refracting telescope
uses a glass lens to concentrate incoming light
Astronomy - Telescopes
T/f because the ozone layer absorbs th…
The primary advantage to using the Hub…
the Hubble space telescope can observe…
Radio telescopes are large, in part to…
true
True
true
true
T/f because the ozone layer absorbs th…
true
The primary advantage to using the Hub…
True
15 terms
Astronomy (telescopes)
Age of Solar System
Refraction
Refracting Telescopes
Problem with refracting telescopes
4.6 Billion years
Light slowing down as it enters a new medium
Light changes (slows) in direction when entering a medium, le…
Chromatic aberration (blue halo around object), larger telesc…
Age of Solar System
4.6 Billion years
Refraction
Light slowing down as it enters a new medium
34 terms
light and telescope
vacuum
the speed of light through a medium
energy
kinetic energy
3 * 10^8
such as air or glass is less than c
is the ability to do work
is the energy of moving object
vacuum
3 * 10^8
the speed of light through a medium
such as air or glass is less than c
35 terms
Astronomy telescopes
interferometry
adaptive optics
optical telescopes
reflecting
combine telescopes to improve the resolution
adjust mirror for waviness of atmosphere
has to be perfect in order to have clarity
reflects light
interferometry
combine telescopes to improve the resolution
adaptive optics
adjust mirror for waviness of atmosphere
52 terms
Astronomy Chapter 6 Telescopes
electromagnetic radiation
wavelength
nanometers
angstroms
changing electric and magnetic fields that travel through spa…
the distance between successive peaks or troughs of a wave
a unit of length equal to 10 ^-9
a unit of distance often used to measure the wavelength of li…
electromagnetic radiation
changing electric and magnetic fields that travel through spa…
wavelength
the distance between successive peaks or troughs of a wave
62 terms
Astronomy Chapter 4 Telescopes
refraction
chromatic aberration
A problem with refractor telescopes (1)
What is the primary purpose of an astr…
The tendency of a wave to bend as it passes from one transpar…
What problem do refractor telescopes have that reflectors don…
Chromatic aberration - the colors refract in a lens and break…
To collect a lot of light and bring it to a focus.
refraction
The tendency of a wave to bend as it passes from one transpar…
chromatic aberration
What problem do refractor telescopes have that reflectors don…
15 terms
Telescopes and Light
What is a telescope?
What are the two different kinds of te…
What kind of telescope do most researc…
What are the three main functions of a…
A Telescope is a tool used to gather light from objects in th…
A refracting telescope uses a glass lens to concentrate incom…
Reflecting
Most important!!... Gather more light: making objects appear bri…
What is a telescope?
A Telescope is a tool used to gather light from objects in th…
What are the two different kinds of te…
A refracting telescope uses a glass lens to concentrate incom…
27 terms
Chapter 6 - Light and Telescopes
Electromagnetic radiation
wavelength
frequency
photon
Electromagnetic radiation (EM radiation or EMR) is the radian…
The distance between successive crests of a wave, especially…
The number of crests of a wave that move past a given point i…
A particle representing a quantum of light or other electroma…
Electromagnetic radiation
Electromagnetic radiation (EM radiation or EMR) is the radian…
wavelength
The distance between successive crests of a wave, especially…
36 terms
Astronomy: Telescopes
Image
Focal Plane
Detector
Charged-Coupled Devices (CCD)
End result of bent rays that form on the back of the retina.
Place where the image appears.
Any device that records light. Some examples are photographic…
Electronic detectors made of silicon and other materials to b…
Image
End result of bent rays that form on the back of the retina.
Focal Plane
Place where the image appears.
9 terms
Astronomy telescopes
Refracting
Reflecting
Catadioptric
Refracting advantage
Lens
Mirrors
Lens and mirrors
Sealed tube... Nothing blocks view
Refracting
Lens
Reflecting
Mirrors
65 terms
Astronomy *TELESCOPES*
T/F Radio telescopes have to have surf…
T/F The best place to study infrared a…
T/F Because the ozone layer absorbs th…
T/F Gamma-ray telescopes employ the sa…
False
True
True
False
T/F Radio telescopes have to have surf…
False
T/F The best place to study infrared a…
True
50 terms
Light and Telescopes
electromagnetic radiation
wavelength
frequency
equation for the relationship among wa…
light is referred as this... made up of both electric and magnet…
the distance between peaks of a wave... represented by lambda... re…
the number of waves that pass a stationary point in one secon…
lambda v = c
electromagnetic radiation
light is referred as this... made up of both electric and magnet…
wavelength
the distance between peaks of a wave... represented by lambda... re…
93 terms
Light & Telescopes
Light
Wave
Wavelength
Frequency
How have we gathered most of our information about the Univer…
A disturbance that moves through a material medium or through…
Distance between 2 wave crests.
How often a wave crest hits per second measured in hertz.
Light
How have we gathered most of our information about the Univer…
Wave
A disturbance that moves through a material medium or through…
71 terms
Light and Telescopes
Virtually all that we know about the u…
Andromeda galaxy is about ____________…
"2.5 million light years away" means t…
1 light year equals ____________ miles
radiation
2.5 million
about 2.5 million years for Andromeda's light to reach Earth
10 trillion
Virtually all that we know about the u…
radiation
Andromeda galaxy is about ____________…
2.5 million
8 terms
Light & Telescopes
List 7 Different Types of Electromagne…
Why does each chemical element have a…
Why is it that we only observe the ski…
What are the advantages/ disadvantages…
infrared, thermal radiation, radio, microwave, visible, ultra…
unique electron structure will result in unique energy level…
only visible light\ radio waves can reach earth's surface bc…
Refactors: simple, disadvantages: expensive, heavy, chromatic…
List 7 Different Types of Electromagne…
infrared, thermal radiation, radio, microwave, visible, ultra…
Why does each chemical element have a…
unique electron structure will result in unique energy level…
25 terms
Light and Telescopes
speed of light
photons
wavelength and frequency relations c=w…
waves allowed on earth
300 000 000 km/s only if in a vacuum
energy packets or light particles
small wave large freq large energy (xray, gamma, UV)... larger w…
radio Atmosphere protects against gamma and X... micro... kind of i…
speed of light
300 000 000 km/s only if in a vacuum
photons
energy packets or light particles
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