Doppler Effect and Spectroscopy Notes

Vocabulary flashcards covering the Doppler effect, the electromagnetic spectrum, telescope types, and spectroscopy variations based on lecture notes.

Doppler effect

The apparent change in Frequency of a wave caused by the relative motion between the source Of wave and the observer.

Red Shift

A phenomenon where all the lines are shifted towards the red end, indicating that a star is moving away.

Blue Shift

A phenomenon where all the lines are shifted towards the blue end, indicating that a star is moving towards the observer.

Electromagnetic spectrum (Longer wavelengths)

The portion of the spectrum associated with less energy, including Radio waves, Micro waves, and Infrared.

Electromagnetic spectrum (Shorter wavelengths)

The portion of the spectrum associated with higher energy, including Ultraviolet rays and gamma rays.

Radio telescope

A device that uses radiowaves to detects things that dont give off light.

Optical telescope

A device that gathers light from the visable Part of the electo magnetic Spectrum.

Spectroscopy

The study of how light interacts with matter.

Continuous Spectrum

The least useful spectrum for studying where high energy blur lines into a continuous range.

Absorption Spectrum

A spectrum where light energy is absorbed by cooler gases, appearing as blackline.

Emission Spectrum

Also known as a bright line spectrum.

What are the terrestrial/inner planets

Mercy, Venus, earth, Mars

Factors of terrestrial planets

Made of rocky and solid material

Relatively small

Few to no moons

No rings

What are the Jovian/outer planets

Jupiter, Saturn, Uranus, Neptune

Key factors of Jovian planets

Support ring systems

Large in size

Multiple moons

No solid surface

Asteroid

Large space rocks that revolve around the sun

Comet

Made of dust and ice, when heated leaves a viable trail of gas and ice.

Meteoroid

Rocky or metallic small objects travelling in space

Meteor

Light rail immited by meteor when entering Earth's atmosphere

Meteorite

Fragments of meteors the remain after passing through Earth's atmosphere

Apparent daily motion

Celestial objects appear to move across the sky each day

Geocentric

EARTH centered

Heliocentric

SUN centered

Newton's 3rd law

For every action there is a equal + opposite reaction