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Astronomy Quiz: Constellations, Wavelengths, and Kepler's Laws, Exams of Astronomy

Pennsylvania State University - BehrendAstronomy

A series of questions and answers related to astronomy, covering topics such as constellations, wavelengths, frequencies, spectra, telescopes, and kepler's laws. It includes questions about the visibility of constellations, the relationship between wavelength and frequency, the function of telescopes, and the characteristics of planets in our solar system. Designed to test understanding of basic astronomical concepts and principles, making it a useful resource for students studying astronomy or preparing for exams. It also touches on the properties of terrestrial and jovian planets, and the composition of comets and meteorites. The content is presented in a question-and-answer format, which facilitates quick review and self-assessment.

Typology: Exams

2024/2025

Available from 07/25/2025

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Astro 7n Unit 1 & 2 Quiz Answers (Exam 1)
Questions & Answers | 100% Correct |
Verified
From Earth, in which constellation might you find the planet Saturn? - ✔✔Taurus
Why don't we see the constellation Orion at night all throughout the year - ✔✔As the Earth orbits the
Sun, its nighttime side point to different constellations at different points along its orbit
When is the best time for you to be able to see the constellation that is your sign of the Zodiac? - ✔✔At
midnight six months after your birthday
Constellations close to the North pole of Earth: - ✔✔Move in a circle around the North star, Polaris, over
the course of a single night.
There are a total of 88 constellations. Roughly how many of these can be seen at any given time from a
single location on a clear night? - ✔✔44
What is the relationship between wavelength and frequency? - ✔✔If the frequency increases the
wavelength decreases
Compare the frequency of an X-ray with that of visible light. - ✔✔The X-ray has a larger frequency than
visible light
Compare the frequency and wavelength of gamma ray with visible light. - ✔✔Gamma ray frequency is
higher and it's wavelength is lower
If the frequency of radiation is twice as large then its wavelength is... - ✔✔half as large
The spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because: - ✔✔each
atom has a unique set of electron orbits
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Astro 7n Unit 1 & 2 Quiz Answers (Exam 1)

Questions & Answers | 100% Correct |

Verified

From Earth, in which constellation might you find the planet Saturn? - ✔✔Taurus Why don't we see the constellation Orion at night all throughout the year - ✔✔As the Earth orbits the Sun, its nighttime side point to different constellations at different points along its orbit When is the best time for you to be able to see the constellation that is your sign of the Zodiac? - ✔✔At midnight six months after your birthday Constellations close to the North pole of Earth: - ✔✔Move in a circle around the North star, Polaris, over the course of a single night. There are a total of 88 constellations. Roughly how many of these can be seen at any given time from a single location on a clear night? - ✔✔ 44 What is the relationship between wavelength and frequency? - ✔✔If the frequency increases the wavelength decreases Compare the frequency of an X-ray with that of visible light. - ✔✔The X-ray has a larger frequency than visible light Compare the frequency and wavelength of gamma ray with visible light. - ✔✔Gamma ray frequency is higher and it's wavelength is lower If the frequency of radiation is twice as large then its wavelength is... - ✔✔half as large The spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because: - ✔✔each atom has a unique set of electron orbits

Dark lines in an absorption spectrum represent: - ✔✔particular energies of light coming from a distant object that are absorbed by material in between Which of the following is FALSE? - ✔✔The energy of a photon increases in proportion to the wavelength of the radiation. Which of the following is true? - ✔✔An absorption spectrum appears as continuous spectrum interrupted by a series dark lines. The electrons in a cloud of hydrogen gas are making the transition from excited states to the ground state. What does the spectrum of this cloud of hydrogen gas look like? - ✔✔It will consist of a few bright emission lines at specific wavelengths. In what ways does a 30 meter telescope outperform a 10 meter telescope? - ✔✔Its images are 9 times brighter than a 10 meter Even the largest ground based telescopes have resolution restrictions imposed by: - ✔✔Atmospheric blurring of images When you magnify an object with a telescope, what else happens to your view of the sky? - ✔✔Your field of view gets smaller so you can only see a small area of the sky How long would one need to observe a star on a 10 meter telescope to collect the same amount of light as one collects in one hour on a 5 meter telescope? - ✔✔15 minutes What was Kepler's First Law? - ✔✔Planets revolve around the sun in elliptical orbits with the Sun at one focus of the ellipse. What best describes the orbit of the Earth around the Sun? - ✔✔An ellipse that is close to being circular.

Where do mountains on earth come from? - ✔✔In some locations, plates of rock on the planet's surface press together and the plates rise together Where are aurorae most likely to be seen? - ✔✔At locations near the poles Which is NOT true about earth's atmosphere? - ✔✔It has more carbon dioxide than Venus so is heated more than Venus by the greenhouse effect. What is ozone? - ✔✔Three oxygen atoms bonded together into a single molecule (O3) What would happen if the ozone layer were completely destroyed? - ✔✔UV radiation from the Sun would get through the atmosphere and cause damage to life. The Greenhouse Effect: - ✔✔is larger on Venus than on Earth Why is Venus' day so long? - ✔✔Venus' rotation time is very long compared to the time it takes to go once around the Sun. Which 2 terrestrial planets have the least atmosphere? - ✔✔Mercury & Mars The densities of the four terrestrial planets are similar to each other. This means... - ✔✔they are made of similar substances. A meteor shower can occur when: - ✔✔Earth's orbit crosses a trail of debris left behind from a comet. Most meteors: - ✔✔Are very small pieces of rock burning in the Earth's atmosphere A comet's nucleus is composed of: - ✔✔dust, dry ice, and water ice

The material in the meteorite is: - ✔✔Roughly as old as the solar system Which of the following is not a characteristic of jovian planets? - ✔✔They have a higher density than terrestrial planets Which planet has a moon with many sulfur volcanoes? - ✔✔Jupiter Which planets have a rocky, relatively dense composition? - ✔✔Mercury, Venus, Earth, and Mars Which of the following statements is FALSE? - ✔✔Jupiter's moon lo does not have any volcanic activity What properties characterize all the Jovian planets (compared to the terrestrial planets?) - ✔✔Many moons, large size, low densities Jovian planets - ✔✔Jupiter, Saturn, Uranus, and Neptune (gaseous; the main asteroid belts) Terrestrial planets - ✔✔Mercury, Venus, Earth, Mars (Going outward from the sun)