Chapter 24.1 The study of light – Flashcards
Unlock all answers in this set
Unlock answersquestion
electromagnetic spectrum
answer
All of the frequencies or wavelengths of electromagnetic radiation
question
photon
answer
A particle of electromagnetic radiation with no mass that carries a quantum of energy
question
spectroscopy
answer
Method used to study composition of stars
question
continuous spectrum
answer
A spectrum of light in which there are no gaps, so that each region blends directly into the next
question
absorption spectrum
answer
Graph plotting a pigments light absorption versus wavelengths
question
emission spectrum
answer
The spectrum of light released from excited atoms of an element
question
Doppler effect
answer
An observed change in the frequency of a wave when the source or observer is moving
question
photosphere
answer
Surface of the sun
question
chromosphere
answer
A gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun
question
corona
answer
outermost portion of the solar atmosphere
question
solar wind
answer
A stream of electrically charged particles produced by the sun's corona
question
sunspot
answer
A dark area of gas on the sun's surface that is cooler than surrounding gases.
question
prominence
answer
A loop of gas that protrudes from the sun's surface, linking parts of sunspot regions
question
solar flare
answer
A sudden eruption of intense high-energy radiation from the sun's surface
question
aurora
answer
An atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force
question
nuclear fusion
answer
2 isotopes of light elements (H) forced together at high temperatures till they fuse to form a heavier nucleus. Expensive, break even point not reached yet
