Sun size and brightness Study guides, Class notes & Summaries

Edelman SPI review questions & Answers 2023. ______ is the distance covered by one cycle. a) pulse length b) wavelength c) cycle distance d) cycle duration ______ is the time to complete one cycle a) pulse duration b) pulse period c) period d) duration period ________ is a redirection of an ultrasound bean in many directions as a result of a rough boundary between two media: a) refraction b) Rayleigh Scattering c) scattering d) reflection _________ resolution is...

Law, Theory, Hypothesis Hypothesis: educated guess with observation. -WHY Theory: summarizes hypothesis by testing. - WHY Law: explains observations - HOW Singularity an area in space-time where gravitational force is so high, all known laws of physics break down. Evidence of Big Bang - Three Pillars of Proof 1. Hubble's Law 2. characteristics of cosmic microwave background radiation 3. abundance of light elements 1. Hubbles Law - there are many galaxies - the univ...

Lab 4 How Big is our Galaxy? ASTRO 102 1 Objective The objective of this lab was to introduce methods that astronomers use to estimate properties of astronomical objects using observations. 2 Introduction A variable star is a star whose brightness changes periodically. Variable stars are comprised of two categories, intrinsic and extrinsic variables. The luminosity of an intrinsic star changes, whereas only the apparent brightness of an extrinsic star changes due to changes in the amoun...

The figure below shows an H-R diagram, with five stars labeled A through E. Which star has the highest temperature? - correct answer A If the sun was not currently in hydrostatic equilibrium, we would see? - correct answer the suns radius increasing and decreasing Which part of the sun is visible around the shadow of the moon? - correct answer chromosphere Stars that have spectral Type B _____ in temperature compared with stars that have spectral type M. - correct answer are hotter T...

What were the early ideas of how the Sun shines? Why were these ideas incorrect? Why does the Sun shine? - Answer-Chemical burning was what humans thought made the sun shine. However, if this was true- the sun would be like a campfire that would need a fuel source and to be "fed" periodically. The Sun shines due to nuclear fusion Be able to name the Sun's layers from inside to outside and be able to know the importance of each layer (e.g. what type of light does the chromosphere emit?) -...

What are the characteristics of disk stars (yellow) of the Milky Way Galaxy? - High mass stars, the Sun, youngest stars, and stars that all orbit in nearly the same plane What are the characteristics of halo stars (green) of the Milky Way Galaxy? - Globular clusters, oldest stars, stars whose orbits can be inclined at any angle, and stars with smallest abundance of heavy elements. What are the characteristics of spiral galaxies? - They contain abundant clouds of cool gas and dust, are rare...

GIZMOS STUDENT EXPLORATION: BIG BANG THEORY – HUBBLE’S LAW 2021 THE BEST EXAM Student Exploration: Big Bang Theory – Hubble’s Law 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 the side of a lonely highway at night, you see two moto...

ISP 203 Final Exam || All Questions & Answers (Rated A+) ISP 203 Final Exam || All Questions & Answers (Rated A+) How has the world population changed since the beginning of agriculture? Since the industrial revolution? - ANSWER - Very small at beginning of agriculture, exploded since industrial revolution What is the first step of the scientific method? - ANSWER - Observe, ask a question What happens after a scientist formulates a hypothesis to explain some observation? - ANSWER - Tes...

A high luminosity star - correct answer Emits more light than a low-luminosity star If a red giant appears the same brightness as a red main sequence star, which one is farther away? - correct answer The red giant The heaviest nuclei of all are formed... - correct answer During a supernova explosion Hydrogen-2 + proton = ____ + energy: - correct answer Helium-3 Which of the following has the smallest radius? - correct answer Neutron star Why does the main sequence part of a star'...

What are the types and locations of traditional flower retailers? Types: professional full-service floral shops specialty flower businesses limited-service flower stores flower merchandisers Locations and Websites: free-standing flower shop strip-center flower shop shopping mall business complex downtown location floral department The majority of floral shops are considered what type of floral shop? full-service flower shops: the florist provides everything a customer needs...