Courtney Swartz
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Based on the study guide (2015) for Dr. Miroshninchenko's midterm exam for Astronomy 235 at UNCG.

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Courtney Swartz
Creado por Courtney Swartz hace alrededor de 9 años
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Astronomy 235- Dr Miroshninchenko Midterm Review 2015

Pregunta 1 de 23

1

What is the age of the Universe?

Selecciona una de las siguientes respuestas posibles:

  • 13 billion years

  • 14 billion years

  • 13 million years

  • 14 million years

Explicación

Pregunta 2 de 23

1

Who were the most influential figures in the history of astronomy?

Selecciona una o más de las siguientes respuestas posibles:

  • Kepler and Brahe

  • Eratosthenes and Ptolemy

  • Galileo and Copernicus

  • Socrates and Aristotle

  • All of the above

Explicación

Pregunta 3 de 23

1

Selecciona la opción correcta de los menús desplegables para completar el texto.

( Eratosthenes, Kepler, Galileo, Brahe, Ptolemy, Tycho ) was the first to measure the ( radius, diameter, circumference, surface area ) of the Earth which helped to prove the Earth wasn't flat. Copernicus developed the heliocentric system and believed in ( elliptical, rectangular, irregular, perfect circle ) revolutions of the planets. Ptolemy's discoveries include developing the Ptolemaic universe model which was ( heliocentric, sun-centered, earth-centered, moon-centered ), ( epicycles, ellipses, gravity ), and cataloging 1028 stars positions. ( Tycho, Brahe, Kepler, Eratosthenes ) is responsible for ( Tycho, Eratosthenes, Brahe, Andromeda )'s quadrant which is ( 1/2, 1/8, 1/3, 1/4, 1/16 ) of ( an ellipse, a circle, an arch ), used to measure positions, precision of the angular observant, and ( one, two, three, four ) second of ( an arc, an ellipse, a circle ). The ( ellipse, circular, irregular ) orbit was discovered/hypothesized about by ( Kepler, Copernicus, Brahe, Newton ). Galileo discovered ( sunspots, solar flares, sun storms ), mountains and valleys on ( the moon,, Venus, Mars, Mercury, Jupiter's moons ) the ( one, five, two, three, four ) moons of ( Saturn, Jupiter, Uranus, Neptune ), phases of ( Mercury, Venus, the moon ), and used the first telescope as a scientific instrument. Kepler is also responsible for ( 3 laws of gravity, 4 laws of gravity, 4 laws, 3 laws ). The first is that planets have elliptical orbits. The second is that when a planet is ( further away, closer ) to the sun it moves ( slower, faster ) than when it is ( further away, closer ), and the ( third, Pick the other one. ) is that you can measure the ( orbit, revoltionary ) period of a planet that orbits around the sun and convert it to ( astronomical units, light years, Earth years ) and then ( divide, cube, square, multiply ) it and the ( cubed root, square root, product, quotient ) will be it's ( light years, astronomical units, Earth years ) from the sun.

Explicación

Pregunta 4 de 23

1

Roughly, how many stars are in the Milky Way galaxy?

Selecciona una de las siguientes respuestas posibles:

  • 100 million

  • 100 trillion

  • 100 billion

  • 100 thousand

Explicación

Pregunta 5 de 23

1

Roughly how many galaxies are there in the Universe?

Selecciona una de las siguientes respuestas posibles:

  • 100 million

  • 100 billion

  • 100 trillion

  • 100 thousand

Explicación

Pregunta 6 de 23

1

Rellena los espacios en blanco para completar el texto.

A is a huge collection of anywhere from a few hundred million to more than a trillion , all bound together by .

Explicación

Pregunta 7 de 23

1

Why does the milky way look like a band from Earth? Note: outline of sight lies in the plane of the galaxy.

Selecciona una de las siguientes respuestas posibles:

  • We are in the bulge and can only see the flat arms of the galaxy.

  • We are on the arms and cannot see anything but the rest of the arm spread out around us.

  • We are in the bulge and cannot see anything beyond the bulge.

  • We are on the arm and see the disk

Explicación

Pregunta 8 de 23

1

Retrograde motion as explained by the system is where the planets orbited around the but also a fixed point within a smaller similar to how the and . The system explains retrograde motion by claiming the orbited around in .

Arrastra y suelta para completar el texto.

    Ptolemaic
    Copernican
    Newtonian
    Braheaic
    Sun
    Earth
    moon
    revolutioned around
    circled around
    orbited around
    axis
    revolution
    gravitational pull
    orbit
    Jupiter orbits the sun
    the Earth orbits the sun
    the moon orbits the Earth
    Jupiter's moons orbit each other
    the moon orbits around the Earth
    Earth orbits the sun
    the moon orbits the Sun
    Earth orbits the moon
    the Ptolemaic
    the Eratosthenic
    the Keplarian
    the Copernican
    the planets
    the sun
    the moon
    the Earth
    +the sun
    +the Earth
    +the planets
    +the moon
    irregular patterns
    ellipses
    perfect circles
    imperfect circles

Explicación

Pregunta 9 de 23

1

What is direct proof the Earth is not stationary?

Selecciona una o más de las siguientes respuestas posibles:

  • parallax

  • stellar parallax

  • the seasons

  • the clouds

Explicación

Pregunta 10 de 23

1

What elementary (subatomic) particles make up atoms?

Selecciona una o más de las siguientes respuestas posibles:

  • protons

  • neutrons

  • electrons

  • both 1 and 2

  • both 1 and 3

  • both 2 and 3

Explicación

Pregunta 11 de 23

1

What are the main parameters of an EM wave (wavelength, frequency, amplitude)?

Selecciona una de las siguientes respuestas posibles:

  • travel through space with a speed c=> their wavelengths ^(greek letter) and frequency f are related

  • travel through space with a speed c=< their wavelengths ^(greek letter) and frequency f are related

  • travel through space with a speed c=> their wavelengths ^(greek letter) and frequency f are not related

  • travel through space with a speed c=< their wavelengths ^(greek letter) and frequency f are not related

Explicación

Pregunta 12 de 23

1

What is the place of the visible light in the electromagnetic (EM) spectrum?

Selecciona una de las siguientes respuestas posibles:

  • the beginning

  • the end

  • outside of it

  • the middle

Explicación

Pregunta 13 de 23

1

How are a photon's energy and frequency (wavelength) are connected?

Selecciona una de las siguientes respuestas posibles:

  • The higher the frequency, the more energy it produces.

  • The lower the frequency the more energy it produces.

  • The higher the frequency the less energy it produces

Explicación

Pregunta 14 de 23

1

What elementary particle is responsible for emitting radiation in atoms?

Selecciona una de las siguientes respuestas posibles:

  • photon

  • neutron

  • proton

  • electron

Explicación

Pregunta 15 de 23

1

What does the law of conservation of angular momentum state?

Selecciona una o más de las siguientes respuestas posibles:

  • an external force must act on an object for momentum to occur

  • an external force must not act on an object for momentum to occur

  • momentum cannot be created or destroyed it simply exists

  • momentum must be created by a constant application of force

Explicación

Pregunta 16 de 23

1

What are the consequences of the law of angular momentum?

Selecciona una o más de las siguientes respuestas posibles:

  • inverse correlation

  • reverse correlation

  • faster movement to conserve angular momentum

  • slower movement to conserve angular momentum

Explicación

Pregunta 17 de 23

1

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)?

Selecciona una de las siguientes respuestas posibles:

  • Low-energy photons, like radio photons, tend to behave more like waves, while higher energy photons (i.e. X-rays) behave more like particles.

  • I don't know

  • High-energy photons, like radio photons, tend to behave more like particles, while lower energy photons (i.e. X-rays) behave more like waves

Explicación

Pregunta 18 de 23

1

The regions of the EM spectrum are:

Selecciona una de las siguientes respuestas posibles:

  • Ultraviolet radiation, Visible radiation, Infrared radiation, Terahertz radiation, and Microwave radiation

  • Gamma radiation, X-ray radiation, Ultraviolet radiation, infrared radiation, and radio waves

  • Gamma radiation, X-ray radiation, Ultraviolet radiation, Visible radiation, Infrared radiation, Terahertz radiation, Microwave radiation, and Radio waves

  • Gamma radiation, X-ray radiation, Infrared radiation, and Radio waves

Explicación

Pregunta 19 de 23

1

What are the basic properties of all EM waves? (Electromagnetic)

Selecciona una o más de las siguientes respuestas posibles:

  • waves travel parallel to each other

  • waves travel perpendicular to each other

  • same amplitude and wavelength

  • same frequency and wavelength

  • same frequency, amplitude, and wavelength

Explicación

Pregunta 20 de 23

1

What happens when radiation is emitted or absorbed by an atom?

Selecciona una de las siguientes respuestas posibles:

  • Photons are created

  • Light is created

  • photons are destroyed

  • darkness is created

Explicación

Pregunta 21 de 23

1

What mirror size do the largest telescopes in the world have?

Selecciona una de las siguientes respuestas posibles:

  • 10m diameter

  • 20m diameter

  • 100m diameter

  • 1000m diameter

Explicación

Pregunta 22 de 23

1

Which of the following statements best describes the two principal advantages of telescopes over eyes?

Selecciona una o más de las siguientes respuestas posibles:

  • Telescopes can collect far more light with far better angular resolution

  • Telescopes can collect far more light with far greater magnification

  • Telescopes have much more magnification and better angular resolution

  • Telescopes collect more light and are unaffected by twinkling

  • Telescopes can see farther without image distortion and can record more accurate colors

Explicación

Pregunta 23 de 23

1

Which of the following was not discovered by Galileo?

Selecciona una de las siguientes respuestas posibles:

  • phases of Venus

  • stellar parallax

  • mountains and valleys on the moon

  • 4 moons of jupiter

Explicación

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