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Flashcards / universe vocab

universe vocab

universe vocab

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School: University of the West
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Tags: University of the West
Cost: 25
Name: universe vocab
Uploaded: 04/08/2016
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Universe

All of space and everything in it

Stars

A ball of hot dense gas that makes up galaxies

Hertzsprung-Russell Diagram

A graph relating the surface temperatures and absolute brightness of stars

Nebulae

A cloud in outer space consisting of gas or dust that forms after a star explodes

Galaxies

Collection of stars, gases, and planets around a dense center called a nucleus which they rotate around

Sun

The star which the Earth orbits

Earth

The planet we live on

Distance

The amount of space between two objects

Light Years

The amount of time Light needs to travel to get to a specific area

light

Electromagnetic radiation that can produce a visual sensation

Electromagnetic Spectrum

All of the frequencies or wavelengths of electromagnetic radiation

Radio Waves

Electromagnetic waves with the longest wavelengths and lowest frequencies

Wavelength

Horizontal distance between the crests or between the troughs of two adjacent waves