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Astronomy Unit 3

1.1 The first Kirchhoff principle is "a luminous solid or liquid emits light in a ________________ spectrum." continuous
1.2 The second Kirchhoff principle is "a rarefied luminous gas emits light whose spectrum shows _______________ lines." bright
1.3 The third Kirchhoff principle is "if the white light from a luminous source is passed through a gas, the gas may _____________ certain wavelengths from the continuous spectrum." abstract
1.4 The _________________ is unique to each element. bright-line spectrum
1.5 In ____________ an electron leaves the atom entirely. ionization
1.6 If something is in its normal atomic state it is ________________. neutral
1.7 A __________________ shifts toward blue or red end of the spectrum. moving light source
1.8 ________________ appear in the same place. Elements present
1.9 ______________ determine whether a magnetic field exists. Thick lines
1.10 In a _____________________ light rays are made parallel. collimating lens
2.1 T/F Galileo Galilei discovered the photosphere in 1610. F-blemishes/sunspots on the photosphere
2.2 T/F Heinrich Schwabe announced the sunspot cycle in 1843. T
2.3 T/F Richard Carrington announced that differential rotation drove the sunspot cycle. F-
2.4 T/F The photosphere consists of the tops of plages rising from lower depths. F-columns of hot gases
2.5 T/F As the sunspot cycle progresses, the latitude of sunspot formation gradually moves toward the poles. F-equator
2.6 T/F Sunspots occur in pairs, each with a different latitude. F-polarity
2.7 T/F A flow of electrons is an electric current. T
2.8 T/F The Zeeman effect shows the turbulence of the Sun. F-magnetic nature of sunspots
2.9 T/F Sunspots last up to eight minutes. F-months
2.10 T/F George Hale found that pairs of sunspots have opposite flares. F-magnetic polarities
2.11 ______________ is the matter when atoms are torn apart. Plasma
2.12 _____________ is north or south of an equator. Latitude
2.13 A _____________ is a column top. granule
2.14 ____________ is when properties differ between two ends of the same object. Polarity
2.15 __________ is a backward-circling current. Eddy
2.16 ____________ is an action seen in water coming to a boil. Convection
2.17 ___________ is a quantity of matter. Volume
2.18 _______________ is formed by particles from the Sun that stream through space. Solar wind
2.19 A ______________ is a spot of intensely growing atoms. plage
2.20 The ___________________ is the Sun's glowing disk, or light globe. photosphere
3.1 Helium was so named because the Greek word for "sun" is _____________. helios
3.2 A ________________ is a jet of plasma. spicule
3.3 The ______________ is also a crown. corona
3.4 A ________________ is a heavy hydrogen nucleus. deuteron
3.5 A ___________________ is a part of basic structure. property
3.6 _______________ is valid reasoning. Logic
3.7 An _______________ is the dimming of light. eclipse
3.8 The ____________ is the highest point. apex
3.9 The ______________ is called the color globe. chromosphere
3.10 A _________________ is a necessary part. constituent
3.11 The Sun's core does not collapse because of _______________ outward pressure. counteracting
3.12 A collision between atomic particles is necessary to overcome the natural _____________________ between them. electrical repulsion
3.13 Helium-4 is the ________________ form of helium. ordinary
3.14 After its formation helium-4 does not enter into _______________ again. atomic processes
3.15 Pressure waves inside the Sun are used to ____________ the Sun. probe
3.16 The Sun is an _________________ star when compared to other stars. above average
3.17 The atomic processes at work inside the Sun is called ______________. fusion
3.18 The solar core contains half the solar ____________. mass
3.19 Protons are also hydrogen ___________. nuclei
3.20 _________________ is the process by which heat and light reach from the Sun to Earth. Radiation
4.1 To ___________ is to make less dense. rarefy
4.2 ____________ is to force away by pushing. Buffet
4.3 To ___________ is to direct attention. indicate
4.4 The _______________ is equidistant between poles. equator
4.5 An ___________________ is a substance consisting of only one kind of atom. element
4.6 ___________ is the action that tends to drive apart. Repulsion
4.7 To ____________ is to take away or remove. abstract
4.8 ____________ also means innumerable. Myriad
4.9 To ____________ is to blend two or more things. merge
4.10 A _____________ is an empty space. void
4.11 To _______________ is to change for the better. refine
4.12 ____________ means of great size. Immense
4.13 ______________ created the three principles of spectroscopy. Gustav Kirchhoff
4.14 ______________ discovered sunspots. Galileo Galilei
4.15 ___________ announced the sunspot cycle. Heinrich Schwabe
4.16 ______________ created the eleven-year sunspot cycle. Richard Carrington
4.17 ________________ said pairs of sunspots have opposite polarities. George Hale
4.18 A more formal name for a heavy hydrogen nucleus is __________. deuterium
4.19 A spot of intensely glowing atoms on the photosphere is a _______________. plage
4.20 Another name for a hydrogen nucleus is _______________. proton
4.21 Ultraviolet and x-ray radiation, together with high-speed electrons, that escapes the Sun is called __________________. solar wind
4.22 The nuclear reaction where lighter atoms are built up to heavier atoms is called ______________. fusion
4.23 The process by which heat and light reach from the Sun to Earth is called _______________. radiation
4.24 Waves used to probe the Sun are _______________ waves. pressure
4.25 The form of helium that does not enter into atomic reactions on the Sun is __________________. helium-4
Created by: jhincks