Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED

Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED Practice questions for this set Learn 1 / 7 Study with Learn diameter of the opening of the telescope Choose matching term 1 In what ways does a 5 meter telescope outperform a 1 meter telescope? 2 The faintness of an object that a telescope can observe is mostly determined by the? 3 Wavelengths of X-rays 4 A particular Zodiac constellation is high in the sky at midnight in April. Where will it be in October? Don't know? 12/18/24, 7:25 PM Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED Flashcards | Quizlet Terms in this set (100) What two properties of a planet affect the gravity we feel on its surface? Mass and radius Two planets have the same radius. If Planet A is 5 times more massive than Planet B, how does gravity differ on the surfaces of the two planets? Gravity is 5 times stronger on Planet A Say that there was a planet X in our Solar System with a mass 1/4 the mass of Earth and a radius 1/2 the radius of Earth. How will the gravity on its surface compare to the surface gravity on Earth? Surface gravity on planet X is the same as on Earth A planet in a nearly circular orbit with its rotation axis tilted by 5 degrees relative to its orbital plane around its stars would... Have seasons that are not very different from each other as compared to Earth The rotation axis of the Earth is ... tilted at about 23 degrees relative to the axis of the Earth's orbit around the Sun. 12/18/24, 7:25 PM Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED Flashcards | Quizlet A planet has its rotation tilted by 88% so that it is in the plane of its orbit around its star. It rotates once every 46 hours. For how many hours a day is it dark in the winter on its South pole? 46 hours When is the waning gibbous highest in the sky? 3 am If the Moon phase is full, what phase would the Earth appear to be in when viewed from the Moon? New At what time will the Moon set on the day of a Solar eclipse? Sunset Stars that are in the same constellation... are likely to be at very different distances from us. The North star is a star in the constellation of Ursa Minor, which lies just above the North pole of Earth. Which of the following is true? Ursa Minor is not a Zodiac constellation 12/18/24, 7:25 PM Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED Flashcards | Quizlet A particular Zodiac constellation is high in the sky at midnight in April. Where will it be in October? Near the Sun in the daytime sky What do you expect the spectrum of an object that is 1,000,000 Kelvin to be like? It should peak at X-ray wavelengths As compared to a cool star, a hotter star emits... shorter wavelength, higher frequency, bluer color Radio waves can travel large distances without interference because... they have longer wavelengths than visible light Compared to ultraviolet radiation, X-rays have a wavelength that is... shorter Star A is 4000 K, and Star B is 8000 K. Which of the following is true? The color of Star A is redder than Star B A star is hot, dense gas surrounded by a cooler, low density atmosphere. What type of spectrum will a star create? Absorption spectrum An electron in a sodium atom absorbs a photon of light and moves to the next higher energy level. What will happen next? The electron will eventually emit a photon with the same energy as the one it absorbed 12/18/24, 7:25 PM Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED Flashcards | Quizlet What makes a transition from a lower energy state to a higher energy state when a photon is absorbed into an atom? Electron An emission line is produced when: an electron passes from a higher to a lower energy level. Bright lines in an emission spectrum represent particular energies of light that are emitted from a distant object The faintness of an object that a telescope can observe is mostly determined by the? diameter of the opening of the telescope In what ways does a 5 meter telescope outperform a 1 meter telescope? Its images are 25 times brighter than a 1 meter A mountain top is a good location for optical telescopes because the site: is above much of the atmosphere What is Newton's first law? An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. What is an example of Newton's first law? If the sun disappeared, the Earth would continue in the direction that it was traveling in its orbit at that time 12/18/24, 7:25 PM Astro 1 Exam 1 PSU PRACTICE QUESTIONS AND ANSWERS 100% PASS GUARANTEED Flashcards | Quizlet What is Newton's second law? The acceleration of a body due to a force will be in the same direction as the force, with a magnitude directly proportional to its mass