Phys1160 Answers Quiz 1

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Electromagnetic Radiation and Spectra — Choose the word that best fills the gap in each sentence. A cloud of hot gas produces light with an ________ line spectrum. | Answer 1 | A cloud of cool gas in front of a hot object produces an ________ line spectrum | Answer 2 | The Doppler effect causes a ________ of the wavelength of light in the spectrum of a star that is moving away from us. | Answer 3 | A hot object glows due to its ________ radiation. | Answer 4 | Electromagnetic radiation of wavelength 2 micrometres is referred to as _______ radiation. | Answer 5 | Visible light has a ________ of between about 400 and 800 nanometres. | Answer 6 | Feedback You have correctly selected 6. Correct Marks for this submission: 10.00/10.00. Question 2 Correct Mark 10.00 out of 10.00 Flag question Question text Sizes of Astronomical Objects — Rank the following objects in size from Largest to Smallest. i.e. in the sequence Largest, 2nd Largest, 3rd Largest, 4th Largest, 5th Largest, 6th Largest, 7th Largest, Smallest. the Milky Way galaxy | Answer 1 | the Sun | Answer 2 | our Solar system | Answer 3 | the local supercluster | Answer 4 | Jupiter | Answer 5 | the universe | Answer 6 | Earth | Answer 7 | Neptune | Answer 8 | Feedback You have correctly selected 8. Correct Marks for this submission: 10.00/10.00. Question 3 Correct Mark 5.00 out of 5.00 Flag question Question text What does the following photograph show? Select one: A. A spiral galaxy similar to the Milky way B. The solar system C. Our own Milky Way galaxy D. A planetary nebula Feedback Correct Marks for this submission: 5.00/5.00. Question 4 Correct Mark 5.00 out of 5.00 Flag question Question text Astronomers can use telescopes on the ground to observe electromagnetic radiation of some wavelengths, but other wavelengths are

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