3622702
Descripción
Test por Courtney Swartz, actualizado hace más de 1 año
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Creado por Courtney Swartz
hace más de 8 años
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Pregunta 1
Pregunta
What is the age of the Universe?
Respuesta
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13 billion years
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14 billion years
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13 million years
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14 million years
Pregunta 2
Pregunta
Who were the most influential figures in the history of astronomy?
Respuesta
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Kepler and Brahe
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Eratosthenes and Ptolemy
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Galileo and Copernicus
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Socrates and Aristotle
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All of the above
Pregunta 3
Pregunta
[blank_start]Eratosthenes[blank_end] was the first to measure the [blank_start]circumference[blank_end] of the Earth which helped to prove the Earth wasn't flat. Copernicus developed the heliocentric system and believed in [blank_start]perfect circle[blank_end] revolutions of the planets. Ptolemy's discoveries include developing the Ptolemaic universe model which was [blank_start]earth-centered[blank_end], [blank_start]epicycles[blank_end], and cataloging 1028 stars positions. [blank_start]Brahe[blank_end] is responsible for [blank_start]Tycho[blank_end]'s quadrant which is [blank_start]1/4[blank_end] of [blank_start]an arch[blank_end], used to measure positions, precision of the angular observant, and [blank_start]one[blank_end] second of [blank_start]an arc[blank_end]. The [blank_start]ellips[blank_end] orbit was discovered/hypothesized about by [blank_start]Kepler[blank_end]. Galileo discovered [blank_start]sunspots[blank_end], mountains and valleys on [blank_start]the moon,[blank_end] the [blank_start]four[blank_end] moons of [blank_start]Jupiter[blank_end], phases of [blank_start]venus[blank_end], and used the first telescope as a scientific instrument. Kepler is also responsible for [blank_start]3 laws[blank_end]. The first is that planets have elliptical orbits. The second is that when a planet is [blank_start]closer[blank_end] to the sun it moves [blank_start]faster[blank_end] than when it is [blank_start]further away[blank_end], and the [blank_start]third[blank_end] is that you can measure the [blank_start]orbit[blank_end] period of a planet that orbits around the sun and convert it to [blank_start]Earth years[blank_end] and then [blank_start]square[blank_end] it and the [blank_start]cubed root[blank_end] will be it's [blank_start]AU[blank_end] from the sun.
Respuesta
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Eratosthenes
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Kepler
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Galileo
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Brahe
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Ptolemy
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Tycho
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radius
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diameter
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circumference
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surface area
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elliptical
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rectangular
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irregular
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perfect circle
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heliocentric
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sun-centered
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earth-centered
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moon-centered
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Tycho
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Brahe
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Kepler
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Eratosthenes
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Tycho
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Eratosthenes
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Brahe
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Andromeda
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1/2
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1/8
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1/3
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1/4
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1/16
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an ellipse
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a circle
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an arch
-
an arc
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an ellipse
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a circle
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one
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two
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three
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four
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ellipse
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circular
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irregular
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Kepler
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Copernicus
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Brahe
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Newton
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sunspots
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solar flares
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sun storms
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the moon,
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Venus
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Mars
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Mercury
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Jupiter's moons
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one
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five
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two
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three
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four
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Saturn
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Jupiter
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Uranus
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Neptune
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Mercury
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Venus
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the moon
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3 laws of gravity
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4 laws of gravity
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4 laws
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3 laws
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third
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Pick the other one.
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further away
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closer
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slower
-
faster
-
further away
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closer
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orbit
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revoltionary
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astronomical units
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light years
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Earth years
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divide
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cube
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square
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multiply
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cubed root
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square root
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product
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quotient
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light years
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astronomical units
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Earth years
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epicycles
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ellipses
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gravity
Pregunta 4
Pregunta
Roughly, how many stars are in the Milky Way galaxy?
Respuesta
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100 million
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100 trillion
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100 billion
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100 thousand
Pregunta 5
Pregunta
Roughly how many galaxies are there in the Universe?
Respuesta
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100 million
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100 billion
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100 trillion
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100 thousand
Pregunta 6
Pregunta
A [blank_start]galaxy[blank_end] is a huge collection of anywhere from a few hundred million to more than a trillion [blank_start]stars[blank_end], all bound together by [blank_start]gravity[blank_end].
Respuesta
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galaxy
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stars
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gravity
Pregunta 7
Pregunta
Why does the milky way look like a band from Earth? Note: outline of sight lies in the plane of the galaxy.
Respuesta
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We are in the bulge and can only see the flat arms of the galaxy.
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We are on the arms and cannot see anything but the rest of the arm spread out around us.
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We are in the bulge and cannot see anything beyond the bulge.
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We are on the arm and see the disk
Pregunta 8
Pregunta
Retrograde motion as explained by the [blank_start]Ptolemaic[blank_end] system is where the planets orbited around the [blank_start]Earth[blank_end] but also [blank_start]orbited around[blank_end] a fixed point within a smaller [blank_start]orbit[blank_end] similar to how the [blank_start]moon orbits Earth[blank_end] and [blank_start]Earth orbits the sun[blank_end]. The [blank_start]Copernican[blank_end] system explains retrograde motion by claiming the [blank_start]planets[blank_end] orbited around [blank_start]the sun[blank_end] in [blank_start]perfect circles[blank_end].
Respuesta
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Ptolemaic
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Copernican
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Newtonian
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Braheaic
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Sun
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Earth
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moon
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revolutioned around
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circled around
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orbited around
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axis
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revolution
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gravitational pull
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orbit
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Jupiter orbits the sun
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the Earth orbits the sun
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the moon orbits the Earth
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Jupiter's moons orbit each other
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the moon orbits around the Earth
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Earth orbits the sun
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the moon orbits the Sun
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Earth orbits the moon
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the Ptolemaic
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the Eratosthenic
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the Keplarian
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the Copernican
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the planets
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the sun
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the moon
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the Earth
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+the sun
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+the Earth
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+the planets
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+the moon
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irregular patterns
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ellipses
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perfect circles
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imperfect circles
Pregunta 9
Pregunta
What is direct proof the Earth is not stationary?
Respuesta
-
parallax
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stellar parallax
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the seasons
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the clouds
Pregunta 10
Pregunta
What elementary (subatomic) particles make up atoms?
Respuesta
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protons
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neutrons
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electrons
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both 1 and 2
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both 1 and 3
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both 2 and 3
Pregunta 11
Pregunta
What are the main parameters of an EM wave (wavelength, frequency, amplitude)?
Respuesta
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travel through space with a speed c=> their wavelengths ^(greek letter) and frequency f are related
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travel through space with a speed c=< their wavelengths ^(greek letter) and frequency f are related
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travel through space with a speed c=> their wavelengths ^(greek letter) and frequency f are not related
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travel through space with a speed c=< their wavelengths ^(greek letter) and frequency f are not related
Pregunta 12
Pregunta
What is the place of the visible light in the electromagnetic (EM) spectrum?
Respuesta
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the beginning
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the end
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outside of it
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the middle
Pregunta 13
Pregunta
How are a photon's energy and frequency (wavelength) are connected?
Respuesta
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The higher the frequency, the more energy it produces.
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The lower the frequency the more energy it produces.
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The higher the frequency the less energy it produces
Pregunta 14
Pregunta
What elementary particle is responsible for emitting radiation in atoms?
Respuesta
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photon
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neutron
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proton
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electron
Pregunta 15
Pregunta
What does the law of conservation of angular momentum state?
Respuesta
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an external force must act on an object for momentum to occur
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an external force must not act on an object for momentum to occur
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momentum cannot be created or destroyed it simply exists
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momentum must be created by a constant application of force
Pregunta 16
Pregunta
What are the consequences of the law of angular momentum?
Respuesta
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inverse correlation
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reverse correlation
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faster movement to conserve angular momentum
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slower movement to conserve angular momentum
Pregunta 17
Pregunta
What kind of frequencies (wavelengths) and energies do different types of photons have (for example, X-rays have high frequencies, low wavelengths, and high energies)?
Respuesta
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Low-energy photons, like radio photons, tend to behave more like waves, while higher energy photons (i.e. X-rays) behave more like particles.
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I don't know
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High-energy photons, like radio photons, tend to behave more like particles, while lower energy photons (i.e. X-rays) behave more like waves
Pregunta 18
Pregunta
The regions of the EM spectrum are:
Respuesta
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Ultraviolet radiation, Visible radiation, Infrared radiation, Terahertz radiation, and Microwave radiation
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Gamma radiation, X-ray radiation, Ultraviolet radiation, infrared radiation, and radio waves
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Gamma radiation, X-ray radiation, Ultraviolet radiation, Visible radiation, Infrared radiation, Terahertz radiation, Microwave radiation, and Radio waves
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Gamma radiation, X-ray radiation, Infrared radiation, and Radio waves
Pregunta 19
Pregunta
What are the basic properties of all EM waves? (Electromagnetic)
Respuesta
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waves travel parallel to each other
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waves travel perpendicular to each other
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same amplitude and wavelength
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same frequency and wavelength
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same frequency, amplitude, and wavelength
Pregunta 20
Pregunta
What happens when radiation is emitted or absorbed by an atom?
Respuesta
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Photons are created
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Light is created
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photons are destroyed
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darkness is created
Pregunta 21
Pregunta
What mirror size do the largest telescopes in the world have?
Respuesta
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10m diameter
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20m diameter
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100m diameter
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1000m diameter
Pregunta 22
Pregunta
Which of the following statements best describes the two principal advantages of telescopes over eyes?
Respuesta
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Telescopes can collect far more light with far better angular resolution
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Telescopes can collect far more light with far greater magnification
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Telescopes have much more magnification and better angular resolution
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Telescopes collect more light and are unaffected by twinkling
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Telescopes can see farther without image distortion and can record more accurate colors
Pregunta 23
Pregunta
Which of the following was not discovered by Galileo?
Respuesta
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phases of Venus
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stellar parallax
-
mountains and valleys on the moon
-
4 moons of jupiter
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