PSU ASTRO 1 Bundled Exams with Complete Solution | Verified | Guaranteed Success

How much more light does a 12 meter telescope collect than a 6 meter telescope? - 4 times more In the spectroscopy game, what did you do to produce emission lines in the spectrum? - excite the gas in the box What type of light does not get through earth's atmosphere? - x-ray is light a particle...

If a planet is seeing its moon in the new phase right now, in what phase would the planet appear to be when viewed from its moon? - full planet What is the reason for the seasons on earth - earth is tilted with respect to the sun by about 23.5 degrees As compared to a cool star a hotter star emi...

According to newtons second law of motion if the net force of an object increases while the mass of the object remains constant, what happens to acceleration ?` - - Acceleration increases if the earth moved to half its current distance from the sun, how would the force of gravity by the by the su...

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 - D 2. Two planets have the same radius. If Planet A is 5 times more massive ...

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 t...

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 W...

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 c...

When determining a star's surface temperature, what do we need to know? - The peak wavelength of its blackbody spectrum The star Betelgeuse has a lower surface temperature than the Sun; therefore (with IR = infrared and UV = ultraviolet) - Betelgeuse emits more IR and more UV light than the Sun....

What is a light year? - distance that light travels in 1 year What is the closest star to Earth besides the Sun? (4.2 ly away) - proxima centauri What is the age of the universe? - 14 billion years What is our cosmic address? What is the Local Group? - Earth, solar system, milky way galaxy, local...

Why do we see the Moon appear to go through phases as seen from Earth? A. The Moon reflects "Earthshine", so it depends on how much light from the Earth is hitting the Moon B. As the Moon rotates, it presents a different phase to us over the course of its "day". C. Depending on where the Moon...

Explain how a white dwarf's observable properties (specifically Luminosity & Temp) change over billions of years if it is left alone, and show how its location would change on an H-R diagram. - •White Dwarfs are low-mass stars, and if they are left alone, they will fade and cool forever. •If...