PSU Astro 7N Exam 1 2025/2026 Exam
Questions with 100% Correct Answers |
1
Latest Update
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 mass 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 were 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? - 🧠 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 star would ... - 🧠 ANSWER ✔✔Have
seasons that are not very different from each other as compared to Earth
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,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
2
In the diagram above, what season and planet is being represented by the
red X on the planet on the left in orbit around the Sun? - 🧠 ANSWER ✔✔
When is the waning gibbous moon highest in the sky? - 🧠 ANSWER
✔✔About 3 am
What phase is the Moon in, when observed by the person standing on the
Earth in the diagram above? - 🧠 ANSWER ✔✔New
At what time will the Moon set on the day of a Solar eclipse? - 🧠 ANSWER
✔✔Sunset
Stars that are in the same constellation ... - 🧠 ANSWER ✔✔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? - 🧠 ANSWER
✔✔Ursa Minor is a Zodiac constellation in the summer but not in the winter
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, A particular Zodiac constellation is high in the sky at midnight in April.
Where will it be in October? - 🧠 ANSWER ✔✔Near the Sun in the daytime
3
sky
What do you expect the spectrum of an object that is 1,000,000 Kelvin to
be like? - 🧠 ANSWER ✔✔It should peak at X-ray wavelengths
As compared to a cool star, a hotter star emits ... - 🧠 ANSWER ✔✔Shorter
wavelength, higher frequency, bluer color
Radio waves can travel large distances without interference because ... - 🧠
ANSWER ✔✔They have longer wavelengths than visible light
Compared to ultraviolet radiation, X-rays have a wavelength that is ... - 🧠
ANSWER ✔✔Shorter
Star A is 4000 K, and Star B is 8000 K. Which of the following is true? - 🧠
ANSWER ✔✔The color of Star A is redder than Star B
In the diagram above, what is happening in the box in the center? - 🧠
ANSWER ✔✔
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions with 100% Correct Answers |
1
Latest Update
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 mass 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 were 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? - 🧠 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 star would ... - 🧠 ANSWER ✔✔Have
seasons that are not very different from each other as compared to Earth
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,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
2
In the diagram above, what season and planet is being represented by the
red X on the planet on the left in orbit around the Sun? - 🧠 ANSWER ✔✔
When is the waning gibbous moon highest in the sky? - 🧠 ANSWER
✔✔About 3 am
What phase is the Moon in, when observed by the person standing on the
Earth in the diagram above? - 🧠 ANSWER ✔✔New
At what time will the Moon set on the day of a Solar eclipse? - 🧠 ANSWER
✔✔Sunset
Stars that are in the same constellation ... - 🧠 ANSWER ✔✔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? - 🧠 ANSWER
✔✔Ursa Minor is a Zodiac constellation in the summer but not in the winter
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, A particular Zodiac constellation is high in the sky at midnight in April.
Where will it be in October? - 🧠 ANSWER ✔✔Near the Sun in the daytime
3
sky
What do you expect the spectrum of an object that is 1,000,000 Kelvin to
be like? - 🧠 ANSWER ✔✔It should peak at X-ray wavelengths
As compared to a cool star, a hotter star emits ... - 🧠 ANSWER ✔✔Shorter
wavelength, higher frequency, bluer color
Radio waves can travel large distances without interference because ... - 🧠
ANSWER ✔✔They have longer wavelengths than visible light
Compared to ultraviolet radiation, X-rays have a wavelength that is ... - 🧠
ANSWER ✔✔Shorter
Star A is 4000 K, and Star B is 8000 K. Which of the following is true? - 🧠
ANSWER ✔✔The color of Star A is redder than Star B
In the diagram above, what is happening in the box in the center? - 🧠
ANSWER ✔✔
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
