Astro 1 Game Exam #1 Questions and Answers

Astro 1 Game Exam #1 Questions and Answers 1. What two properties of a planet affect the gravity we feel on its surface? A: radius and distance from the Sun B: radius and temperature C: mass and distance from the Sun D: mass and radius E: mass and temperature - ANSWER -D 2. 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? A: gravity is 5 times stronger on Planet B B: gravity is 5 times stronger on Planet A C: gravity is 25 times stronger on Planet A D: gravity is 25 times stronger on Planet B E: gravity is equal on Planet A and Planet B - ANSWER -B 3.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 of Earth? A: surface gravity on planet X is 2 times weaker than on Earth B: surface gravity on planet X is 2 times stronger than on Earth C: surface gravity on planet X is the same as on Earth 2 | P a g e Created by Grace Amelia © 2025, All Rights Reserved. D: surface gravity on planet X is 8 times stronger than on Earth E: surface gravity on planet X is 4 times weaker than on Earth - ANSWER -C 4. A planet in a nearly circular orbit with its rotation axis tilted by 5 degrees relative to its orbital plane around its star would: A: have longer days and nights than those of Earth B: have very severe seasons compared to Earth C: have shorter years than those of Earth D: have shorter days and nights than those of Earth E: have seasons that are not very different from each other as compared to Earth. - ANSWER -E 5. The rotation axis of the Earth is: A: tilted so that it is always pointed directly at the Sun B: is sometimes parallel and sometimes perpendicular to the axis of the Earth's orbit around the Sun. C: tilted at about 23 degrees relative to the axis of the Earth's orbit around the Sun. D: perpendicular to the axis of the Earth's orbit around the Sun. E: parallel to the axis of the Earth's orbit around the Sun. - ANSWER -C 6. A planet has its rotation axis 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? A: 24 hours B: 23 hours C: 0 hours 3 | P a g e Created by Grace Amelia © 2025, All Rights Reserved. D: 46 hours E: 92 hours - ANSWER -D 7. When is the waning gibbous moon highest in the sky? A: about 9am B: about 3am C: about noon D: about midnight E: about 3pm - ANSWER -B 8. If the Moon phase is full, what phase would the Earth appear to bein when viewed from the Moon? A: Full B: First Quarter C: New D: Third Quarter E: Waxing Gibbous - ANSWER -C 9. At what time will the Moon set on the day of a Solar eclipse? A: Sunrise. B: Noon. C: Sunset. D: Midnight. E: It will not set at all. It will be up for 24 hours. - ANSWER -C 4 | P a g e Created by Grace Amelia © 2025, All Rights Reserved. 10. Stars that are in the same constellation: A: appear in all different directions around the sky. B: are all at close to the same distance from us. C: are likely to be at very different distances from us. D: are all in our Solar System. E: are all in orbit around the same larger star. - ANSWER -C 11. 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? A: Ursa Minor is a Zodiac constellation in the winter but not in the summer. B: Ursa Minor is a Zodiac constellation in the summer but not in the winter. C: Ursa Minor is not a Zodiac constellation. D: The Zodiac constellations are located near the axis below the South pole. E: Ursa Minor is a Zodiac constellation all year. - ANSWER -C 12. A particular Zodiac constellation is high in the sky at midnight in April. Where will it be in October? A: high in the sky at midnight B: near the Sun in the daytime sky C: near the horizon a couple of hours after sunset D: near the horizon a couple of hours before sunrise E: visible at midnight, but only from the Southern hemisphere - ANSWER -B 13. What do you expect the spectrum of an object that is 1,000,000 Kelvin to be like? 5 | P a g e Created by Grace Amelia © 2025, All Rights Reserved. A: It should peak at radio wavelengths. B: It should peak at violet wavelengths. C: It should peak at X-ray wavelengths. D: It should give off less total light than the Sun. E: It should give off about 10 times more total light than the Sun. - ANSWER -C 14. As compared to a cool star, a hotter star emits: A: shorter wavelength, lower frequency, bluer color B: shorter wavelength, higher frequency, bluer color C: longer wavelength, higher frequency, bluer color D: shorter wavelength, higher frequency, redder color E: shorter wavelength, lower frequency, redder color - ANSWER -B 15. Radio waves can travel large distances without interference because: A: they have shorter wavelengths than visible light B: they have high energies than visible light C: they have longer wavelengths than visible light D: they travel at the speed of light E: they travel slower than the speed of light - ANSWER -C 16. Compared to ultraviolet radiation, X-rays have a wavelength that is: