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Astronomy Unit 3
| Question | Answer |
|---|---|
| 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
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