Hubbles law - Study guides, Class notes & Summaries

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...

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...

the speed of light is about ___________________. - correct answer 1 ly/year Imagine that you travel the speed of light. Starting from earth, how long would it take you to travel to the center of the milky way galaxy - correct answer about 28,000 years the galactic center lies in the direction of which constellation - correct answer sagittarius we have evidence that a black hole lays in the very center of the Milky Way galaxy. what is the mass of this black hole - correct answer 4 millio...

Absolute brightness the intrinsic brightness of a star that depends only on its luminosity. Apparent brightness how bright a star appears to an observer on Earth. Mpc Astronomers describe the apparent brightness of a star as the ratio between the brightness of the star to the brightness of the Sun when viewed from a distance of 1 _____________ . For example, a star with an apparent brightness of 10 is 10 times brighter than the sun would be if viewed from a distance of 1 _______...

Student Exploration Big Bang Theory – Hubble’s Law

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...

Big Bang Theory – Hubble’s Law

Student Exploration: Big Bang Theory – Hubble’s Law

Comprehensive revision notes on Space from the Edexcel Physics A Level syllabus from an A* student in the 23/24 exam cycle. Complete with labelled diagrams and thoroughly fact checked and up to date.

Goal: Measure and interpret the redshift of Cepheid variable stars. 1. Check: In the bottom half of the Spectra tab, you should see 10 stellar spectra. If you are missing any, go back to the Stars tab, find the missing star, and record its spectrum. 2. Observe: You can measure redshift by comparing the wavelength of a black absorption line on the star’s spectrum with an equivalent line on the reference spectrum. Drag the spectrum for star C-197 into the top part of the Spectra tab. Do yo...