Parallax - Study guides, Class notes & Summaries

If star Alpha Centauri moved to 10 miles faster than it is now, the parallax angle would? correct answers get smaller What do you need to measure in order to determine a stars luminosity? correct answers Apparent brightness and distance Which of these stars clusters is oldest? correct answers A cluster whose brightest main sequence stars are yellow What two factors of info do you need for characteristics of stars? correct answers Its mass and it's stage of life Star A and B are iden...

How do you avoid parallax error? correct answers Look perpendicularly at the ruler Which meniscus do you use when measuring volume? correct answers Bottom meniscus (except Mercury - upper meniscus) How do you measure short intervals of time? correct answers Time a specific number of cycles and then divide the total time by the number of cycles. Mass correct answers The amount of matter and object is made up of OR the property of an object that resists changes in motion Density correc...

Astro 102 - Final Exam Set Questions With 100% Correct Answers | Latest Update What is cosmology? - ANSWER : the study of how the distribution of galaxies changes over time How does the size of a supernova compare with the size of the observable universe? - ANSWER : The size of a supernova is 2/3 the size of the observable universe Cepheids with longer periods have... - ANSWER : higher luminosities A Cepheid with a period of 30 days has an average luminosity that is.... - ANS...

AP Physics Vocab Exam Questions and Answers 100% Pass Motion diagram - shows motion by displaying location at various equally spaced times. Operational definition - The terms in which we define our distance or movement Particle model - Replacing the object with a particle for simplification Coordinate system - Using an x and y system to locate an object Derived Unit - A unit that is a combination of other units Accuracy - How close to the right answer you are Kilogram - Base unit for ma...

Astro 7n Exam Questions With Reviewed Correct Detailed Answers New Update!! 1.. Radiative Zone - ANSWER 2. Convective Zone - ANSWER 3. Photosphere - ANSWER 4. Chromosphere - ANSWER 5. Corona - ANSWER Layer where energy is transferred by radiation. 2. Convective Zone - ANSWER 3. Photosphere - ANSWER 4. Chromosphere - ANSWER 5. Corona - ANSWER Layer where energy is transferred by radiation. Layer where hot gas rises and cool gas sink...

2024_AQA A-Level Physics Paper 3 Section B Astrophysics (Merged Question Paper and Marking Scheme) Monday 17 June 2024 Monday 17 June 2024 Materials For this paper you must have:  a pencil and a ruler  a scientific calculator  a Data and Formulae Booklet  a protractor. Instructions Morning Time allowed: The total time for both sections of this paper is 2 hours. You are advised to spend approximately 50 minutes on this section.  Use black in...

Astro 7N Exam Set Questions With Reviewed Correct Detailed Answers New Update!! 1. A 2 solar mass main sequence star is at the same distance as a 0.2 solar mass main sequence star. Which star appears brighter? - ANSWER the 2 solar mass main sequence star appears brighter 2. Which of the following features, debated by various authors and artists in your reading for this project as to whether or not it is inevitable in animal evolution, appears in nearly all of David Aguilar...

This exam is entirely multiple choice or true/false. A=T, B=F TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) The photosphere is about 100 times the diameter of the Earth, and large sunspots are larger than our whole planet. 1) 2) Granulation is the most obvious proof of solar convective energy transport. 2) 3) The solar corona is much cooler than the Sun's surface, hence we must wait for a total solar eclipse to glimpse it with the naked eye. 3)...

To find the most accurate distance to a nearby star using parallax, astronomers could compare the view of the star against the background stars at what times of the year? - In January and July Which of the following correctly expresses the distance to a nearby star? - 1.3 parsecs Consider two stars (Y and Z) that both exhibit parallax. Star Z appears to move back and forth against the background stars by a greater amount than Y. Which star is farther away from Earth? - Star Y A star has a p...

Intro to Astronomy Final Exam Study Guide Test. Why were ancient peoples unable to detect stellar parallax? • A. They did detect it, but they rejected the observations • B. They could not see distant stars • C. They did not have the ability to measure small enough angles • D. They did not observe for long enough periods of time • E. They looked in the wrong direction - CORRECT ANSWER C How did Eratosthenes estimate the size of the Earth? • A. He sent fleets of ships aroun...