Astro 1 Exam 1 PSU Q&A Latest Update

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Astro 1 Exam 1 PSU | Q&A Latest 2025/2026 | 100% PASS What two properties of a planet affect the gravity we feel on its surface? - Answer -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? - Answer -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? - Answer 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... - Answer Have seasons that are not very different from each other as compared to Earth The rotation axis of the Earth is ... - Answer -tilted at about 23 degrees relative to the axis of the Earth's orbit around the Sun. 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? - Answer -46 hours When is the waning gibbous highest in the sky? - Answer -3 am If the Moon phase is full, what phase would the Earth appear to be in when viewed from the Moon? - Answer -New