Astro 1 exam 1 - Study guides, Class notes & Summaries

Astro 1 exam 1 Penn State 1 UPDATED ACTUAL Questions and CORRECT Answers Newton's first law of motion - CORRECT ANSWER- an object at rest or in motion in a straight line at a constant speed will remain in that state unless acted upon by a force Newton's second law of motion - CORRECT ANSWER- The acceleration of a body due to a force will be in the same direction as the force, with a magnitude inversely proportional to its mas

ASTRO 1 EXAM 1 PENN STATE QUESTIONS AND ANSWERS 2024

Astro 1 Exam 1 PSU Real exam questions and answers latest update

what is the sun comprised of? - 73% hydrogen 25% helium why is the sun stable? - outward force of gas pressure; inward force of gravity Where does the gas pressure in the sun come from? - nuclear fusion reactions in the core at temperatures of 15 million degrees What is the diameter of the sun compared to earth? mass? luminosity (compared to 100W lightbulbs? - diameter-109x; mass-333,000; luminosity- 4 x 10^24 What percent of mass in the solar system comes from the sun? - 99.9% how long h...

What causes day and night? - Rotation of Earth on its Axis How does the Sun appear to move in the sky in the course of a day? - East to West bc of Earth's rotation. The stars and planets move the same way, also bc Earth's rotation What happens to the Earth in one year? - It orbits the Sun one time Why do we have seasons? - Tilt of Earth's axis (not changing from Sun). The tilt is about 23 degrees How is the Earth's axis tilted when we have summer in the Northern hemisphere? - With the N...

What is the order of the planets with distance from the Sun? - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Which planet has the highest surface temperature? - Venus Which planet has the largest mass? - Jupiter Which planet has the largest tilt of its spin axis? - Uranus Which planet has the largest temperature variations? - Mercury Which planet rotates backwards? - Venus Which planet has polar ice caps? - Mars How many moons does Mercury have? - 0 How many moons d...

Astro 1 exam 1 Penn State Study Guide Solutions Newton's first law of motion - ANSWER-an object at rest or in motion in a straight line at a constant speed will remain in that state unless acted upon by a force Newton's second law of motion - ANSWER-The acceleration of a body due to a force will be in the same direction as the force, with a magnitude inversely proportional to its mass Newton's third law of motion - ANSWER-for every action, there is an equal and opposite reaction ...

Astro 7n Exam 1 Questions with 100% Correct Answers | Verified | Latest Update 2024

Astro 7n PSU Exam 1 Review Questions With 100% Correct Answers 2024