Astronomers - Study guides, Class notes & Summaries

7 protons and 8 neutrons correct answers N-15 (7 protons) is an isotope of nitrogen. Its nucleus consists of: absorb correct answers A Hydrogen atom with its electron in the second energy level can ________ energy so that the electron moves to an energy level farther from the nucleus. rising gas below the photosphere correct answers Granulation is caused by: Ozone (O3) correct answers As mentioned in class, the molecule that is most responsible for blocking gamma-rays from space is: ...

PHSC 102 FINAL EXAM QUESTIONS AND ANSWERS ALL CORRECT Hydrostatic equilibrium in our Sun is the balance between - Answer-gravitation and pressure. The vibrations of the Sun reveal information about - Answer-the interior structure of the Sun The most abundant element in the Sun is helium. - Answer-False What is it about the Sun's corona that astronomers don't understand? - Answer-The corona is much hotter than layers of the Sun that are closer to the solar interior. A loop of gas ...

________ allow gasses and to escape the sun, creating solar wind. - ️️Open field lines A planet in orbit around the Sun is accelerating toward the Sun because ______ . - ️️Its direction is constantly changing A star is 230 light years away. Therefore, the light we see tonight left the star _______ years ago. - ️️230 A star's luminosity describes ______ . - ️️How much energy the star gives off each second Absolute magnitude is _______ . - ️️How bright a star appears at 10...

A lightyear is the distance that _________ can travel in one _____ correct answers light, year How many km in a lightyear? correct answers 9.50 x 10^12 km How many KM in an AU correct answers 1.5 x 10^8 How many AU in a lightyear correct answers 63,000 AU Earth is a planet while the Sun is a________ correct answers Star Solar System correct answers consists of the sun, the planets, and some smaller bodies such as moon, asteroids, and comets - one planetary system Name the plane...

A crescent moon is visible in the northern hemisphere, with the crescent shape on the right side of the Moon. This phase is called: - ️️Waxing crescent A lens ___ light to converge at a point - ️️Refracts A magnetic field line pokes through the Sun's photosphere inhibiting convection and cooling that location. What feature is observed in that location on the photosphere? (Also describe how the other features are formed) - ️️Sunspot A mirror ___ light to converge - ️️Reflects ...

What is the speed of light? - Light can travel enormous distances under short periods of time. It is faster than any other phenomenon. It takes about 8 minutes for light to travel from the Sun to Earth. The speed of light in a vacuum is c=3x10^8 m/s. Why is light such an important tool for astronomers? - Because light is how we learn about distant objects without travelling there. It is also a measuring took of astronomy. Light is a wave and a particle. How are different kinds of light wave...

Astr205-Short Quiz 1 - Short answer quiz 1 Exam Questions With Answers 1. A tomb has recently been unearthed in Egypt that shows a set of wall paintings and hieroglyphics of stars falling to and rising above the horizon over the course of the year. (In Egyptian mythology, these stars served as sentinels for the pharaoh’s passage through the underworld.) How would astronomers use this data to date the tomb? Astronomers would use precession to date the tomb in Egypt. Precession refers to t...

Astronomy Final: Test Questions with correct answers and Canvas Notes to help you in your final exams;2024 update 100% guaranteed success According to Wien's Law, a star cooler than the Sun would appear: Ans- Red T/F: Radio waves, visible light, and X-rays are all types of electromagnetic radiation. Ans- True A wave's velocity is the product of the: Ans- Frequency times the wavelength of the wave Which of these is the same for all forms of electromagnetic radiation in a vac...

PHSC102 - Midterm study Guide Questions And All Correct Answers How long does the sunspot cycle last, on average? a. about seven years b. about 76 years c. about 11 years d. between 25-35 years - Answer -about 11 years The vibrations of the Sun reveal information about a. the magnetic field of the Sun. b. the production of energy in the Sun. c. the structure of the atmosphere of the Sun. d. the interior structure of the Sun. - Answer -the interior structure of the sun True...

Sust Exam 4 Quiz Prep The Maya had a centralized ruling authority of subordinate regional kingdoms. T or F? - ANS False The Maya did not have a centralized ruling authority, rather the Maya were a patchwork of many regional kingdoms or independent states, each ruled by royal or noble families. Ruled based on the claim they had a direct connection with the spirit world - ANS Mayan class description Nobility The scientist, engineers, alchemist, and astronomers of the day - A...