Unit 3 Flashcards
________ rotation is when material closer to the Sun’s ________ spins faster than material farther away.
Differential, equator
Another name for a hydrogen nucleus is a(n) _____.
proton
What does spectroscopy reveal about objects under investigation?
all of these except whether the object is ionized
A(n) _____ spectrum indicated the presence of the heat needed to vaporize elements.
emission
The absence of bright-line spectra indicate _____ temperatures.
cool or cold
The _____ is the Sun’s glowing disk, or “light globe.”
photosphere
The Sun has a(n) _____-year magnetic cycle.
22
When _____ occurs, an electron leaves the atom entirely.
ionization
When two helium-3 nuclei unite, a light form of a(n) _____ nucleus is produced.
beryllium
Solar turbulence is produced by a process called _____.
convection
The nuclear reaction where lighter atoms are bonded together with heavier atoms is called _____.
fusion
In a(n) _____ spectrum, some wavelengths are missing.
dark-line
_____ forms when a deuteron captures a third proton.
Helium-3
The presence of _____ in the photosphere shows the sun to be turbulent.
granules
In a(n) _____ spectrum, only certain distinct wavelengths are present.
bright-line
The process by which heat and light reach from the Sun to Earth is called _____.
radiation
A deuteron becomes a heavy _____ nucleus.
hydrogen
_____ lines in a spectrum that are thicker than normal indicate a magnetic field.
Dark
Ultraviolet and x-ray radiation, together with high-speed electrons, that escapes the Sun is called _____.
solar winds
The normal atomic state is to be electrically _____.
neutral
Granules last up to _____ minutes , while sunspots can last for months.
eight
Sunspots begin to emerge between _____ degrees.
30-35
The _____ spectrum is an unbroken array of all colors.
continuous
