Stuff Flashcards
(18 cards)
Cosmology
The Study of space science
universe
Space and matter as whole
Big Bang Theory
The formation and beginning of the expansion of the observable universe
Emission Spectrum
the spectrum for electromagnetic radiation which is emitted from a source
Spectrometer
A device used to measure spectra as a method of analysis
Wavelength
Distance between crests of a wave
Frequency
Rate of occurrence a vibration has.
Expansion
to become larger
Contraction
to become smaller
Galaxy
a system of stars held together by gravity
Intersteller Cloud
a bunch of gas and plasma that is denser than average
Red Shift
the distortion of spectral light from the red end of the EM spectrum from distant galaxy moving away from the observer
Blue Shift
the distortion of spectral light from the blue end of the EM spectrum from ad distant celestial object moving towards the observer
Doppler Effect
an increase or decrease in the frequency of waves such as light and sound as the observer moves away or towards the source
Newton’s Law Of Universal Gravitation
every particle attracts every particle in the universe with a force that is directly proportional to their masses and as well as the square of the distance between their centers
Plasma
an gas that is ionized and consists of positive and free electrons that have more or less no overall electrical charge.
Solar System
the collection of planets and their moons in orbit around a star that is their Sun
Absorption Spectrum
a spectrum of electromagnetic radiation which is transmitted through a substance
