Science Quiz Flashcards
ROYGBIV
All of the visible colors in the spectrum
Emission
The production , or discharge of something, especially gas or radiation
Absorbtion
The process or action of something being absorbed by another
Spiral galaxy
Our galaxy the Milky Way, is a spiral galaxy, Shaped like flattened disks with one or more spiral arms. Our solar system is located in one of the spiral arms
Elliptical galaxies
About 1/3 of all galaxies, simply massive blobs of stars, round or elliptical in shape, contains very little gas or dust, no new stars are forming, the largest and smallest stars are elliptical
Irregular galaxies
Do not fit into any other category, chaotic mix of stars, gas and dust, Usally found near large spiral galaxies who may be distorting their shape
Big Bang
About 13.7 billion years ago, a singularity and heat and denseness created our universe. The steps were first solar nebula shrinks, then,nuclear fusion begins in the sun, next, planetesimals form, finally, planets from
Milky Way
Our solar system and the Sun is located on Orion’s arm. The distance from the sun to the direct center is 30,000 light years. All objects revolve around the center one trip for our solar system around the galaxy= 240 million years
Galaxy
Large grouping of stars, gas, dust, in space which is held together by gravity. Largest constrain millions of stars. Stars are estimated by by brightness
Reflection telescopes
uses mirrors to bounce light, for example rear view mirror on cars, are the most modern. Is an optical telescope. It can focus on fainter objects
Radio telescopes
Measures radio waves, shoots small beams to detect signals, collects data from satellites, all info sent to computers. The larger the roads telescope, the more radio waves are collected.
Infrared telescope
Detects and resolves infrared radiation such as nebulae, young stars., gases, and dust in other galaxies. Located in space, effected by water vapor on earth
Electromagnetic Radiation
Light is a form, light can travel through space, it is visible,
Electromagnetic Spectrum
Shine wight light through a prism the light spreads out, showing different colors with different wavelengths.
Hubble’s Law
The farther the galaxy, the faster it’s moving away from us
