Astro 7n Unit 1 & 2 Questions And Answers (Exam 1) |Latest Updated 2025/2026

Astro 7n Unit 1 & 2 Questions And Answers (Exam 1) |Latest Updated 2025/2026 From Earth, in which constellation might you find the planet Saturn? - answer-Taurus Why don't we see the constellation Orion at night all throughout the year - answer-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? - answer-At midnight six months after your birthday Constellations close to the North pole of Earth: - answer-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? - answer-44 What is the relationship between wavelength and frequency? - answer-If the frequency increases the wavelength decreases Compare the frequency of an X-ray with that of visible light. - answer-The X-ray has a larger frequency than visible light Compare the frequency and wavelength of gamma ray with visible light. - answer-Gamma ray frequency is higher and it's wavelength is lower If the frequency of radiation is twice as large then its wavelength is... - answer-half as largeThe spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because: - answereach atom has a unique set of electron orbits Dark lines in an absorption spectrum represent: - answer-particular energies of light coming from a distant object that are absorbed by material in between Which of the following is FALSE? - answer-The energy of a photon increases in proportion to the wavelength of the radiation. Which of the following is true? - answer-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? - answer-It will consist of a few bright emission lines at specific wavelengths.