Luminosity - Study guides, Class notes & Summaries

Which two factors primarily determine the characteristics of a star? Ans- its mass and its stage of life Star A is identical to Star B, except that Star A is twice as far from us as Star B. Therefore... Ans- both stars have the same luminosity, but the apparent brightness of Star B is four times that of Star A Which of the following statements about spectral types of stars is not generally true? Ans- The spectral type of a star can be used to determine its distance. Sirius is a star ...

Oregon State Board Tattoo TestHue - correct answer Another name for color, I.e. primary color Skin Scribe - correct answer Word for surgical pen Capacitor - correct answer Mini power supply or where power is held Secondary color - correct answer Two primary colors mixed Tertiary color - correct answer Two secondary colors mixed Chroma - correct answer Brightness or dullness Value - correct answer Lightness or darkness of a color Flow - correct answer Mimicking the li...

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...

Name: Date: STUDENT EXPLORATION: BIG BANG THEORY – HUBBLE’S LAW DIRECTIONS: FOLLOW THE INSTRUCTIONS TO GO THROUGH THE SIMULATION. RESPOND TO THE QUESTIONS AND PROMPTS IN THE ORANGE BOXES. Vocabulary: absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, blueshift, Cepheid variable, Doppler shift, Hubble constant, Hubble’s law, luminosity, megaparsec, period, redshift, spectrograph Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Standing by th...

Light-Year is the distance light travels in one year; 1 light-year = 10,000,000,000,000 km or 10 trillion km Apparent Magnitude is a measure of how bright an object appears from Earth Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 Full screen Luminosity also known as the absolute magnitude; it is the true brightness of an object Nuclear Fusion is a process that occurs when the nuclei of several atoms com...

Oregon State Board Tattoo Test with Complete Solutions Hue Another name for color, I.e. primary color Skin Scribe Word for surgical pen Capacitor Mini power supply or where power is held Secondary color Two primary colors mixed Tertiary color Two secondary colors mixed Chroma Brightness or dullness Value Lightness or darkness of a color Flow Mimicking the lines of the body Luminosity How light plays epithelial tissue Provides protection and support, covers and li...

Gizmo Scavenger Hunt-8th Grade Statewide Science Questions with Complete Solutions 2024. Physical Science Make sure you are signed in to your Gizmos account through your student portal. You can use screenshots and text to fill in your answers for the Scavenger Hunt! Points Question or puzzle to solve Answer (can be text, screenshots from Gizmos, or combos of both) 2 pts (SC.8.N.1.1) What is wrong with this experiment? There isn’t a control variable everything is changing, like the amo...

Gizmo Scavenger Hunt-8th Grade Statewide Science Questions and Answers With Complete Solutions (Graded) Create a controlled experiment using one of the following Gizmos (Growing Plants, Coral Reefs Gizmo, Food Chain Gizmo, Conduction & Convection Gizmo, Force & Fan Carts Gizmo, Fan Cart Physics Gizmo, Sled Wars Gizmo, Phase Changes Gizmo, Rabbit Population by Season Gizmo Germination Gizmo Forest Ecosystem Gizmo, Photosynthesis Lab Gizmo, Roller Coaster Physics Gizmo). Identify your Qu...

Space Exploration|Complete Questions with A+ Graded Answers main sequence a diagonal area on an H-R diagram that includes more than 90 percent of all stars white dwarf A small, hot, dim star that is the leftover center of an old star Luminosity the true brightness of an object light year the distance light travels in one year blueshifted the doppler shift toward shorter wavelengths of light from an approaching object Redshifted stars moving away from Earth Ne...

PSU astro 7N UPDATED Exam Questions and CORRECT Answers Composition of the Sun - Ans 73% hydrogen, 25% helium Sun stability caused by - Ans balance of gravity (inward force) and hot interior gas pressure (outward force) Cause of interior gas pressure - Ans nuclear fusion reaction in the Sun's core, going on at 15 million Kelvin Dimensions of the Sun - Ans 109 x Earth's diameter, 333,000 x Earth's mass Sun's luminosity - Ans 4 x 10^24 Watt light bulbs