DUE WEDNESDAY (4-25-18 Test Day)
1) The light we see from the Sun comes from which layer? Page Ref: 16.1
2) The temperature of the layer of gas that produces the visible light of the Sun is: Page Ref: 16.1
3) Why couldn’t you stand on the Sun’s surface? Page Ref: 16.1
4) How many planet Earths could fit inside the Sun? Page Ref: 16.1
5) The density of the Sun is most similar to which Planet/Moon? Page Ref: 16.1
7) About what percent of the incoming energy from the Sun’ reaches Earth’s surface? Page Ref: 16.1
10) From inside out, what is the correct order for the structure of the Sun? Page Ref: 16.1
11) By what mechanism does solar energy reach the Sun’s photosphere from the layer just underneath it? Page Ref: 16.2
12) Hydrostatic equilibrium in our Sun is the balance between Page Ref: 16.2
13) The vibrations of the Sun reveal information about: Page Ref: 16.2
16) What two energy transport mechanisms, in order from outside the core to the surface, is found in the Sun? Page Ref: 16.2
18) The pattern of rising hot gas cells all over the photosphere is called: Page Ref: 16.2
20) When the chromosphere can be seen during a solar eclipse, it appears: Page Ref: 16.3
21) From where does most of the solar wind flow? Page Ref: 16.3
22) What is it about the Sun’s corona that astronomers don’t understand? Page Ref: 16.3
24) The percentage (by mass) of the Sun that is Hydrogen is about: Page Ref: 16.3
26) The percentage (by mass) of the Sun that is Helium is about: Page Ref: 16.3
27) A loop of gas following the magnetic field lines between sunspots’ poles is: Page Ref: 16.4
28) How long does the sunspot cycle last, on average? Page Ref: 16.4
29) Visible sunspots lie in the: Page Ref: 16.4
30) As the Sun rotates, an individual sunspot can be tracked across its face. From eastern to western limb, this takes about: Page Ref: 16.4
36) The numbers of sunspots and their activity peak about every: Page Ref: 16.5
38) During a period of high solar activity, the corona: Page Ref: 16.5
41) Suppose a large flare is detected optically. How long until radio interference arrives?
Page Ref: 16.5
42) Describe neutrinos. Page Ref: 16.6
43) The critical temperature the core must reach for a star to shine by fusion is: Page Ref: 16.6
45) The primary source of the Sun’s energy is: Page Ref: 16.6
47) What natural barrier tries to prevent two protons from combining? Page Ref: 16.6
50) The speed of light is 3.00 × 108 m/s. If 2.00 kg of mass is converted to energy, how much energy will be produced? Page Ref: 16.6
