9)Magnetism causes sunspots. Magnetism was found on the Sun by studying the Zeem
ID: 288237 • Letter: 9
Question
9)Magnetism causes sunspots. Magnetism was found on the Sun by studying the Zeeman Effect. What does this effect cause to happen to spectral lines in a spectrum of the Sun’s light? A) It splits the lines into multiple parts B)it makes the lines thicker C) it makes lines brighter D) it makes lines darker
10) Inside the Core of the Sun, energy is generated during nuclear fusion reactions. These reactions convert hydrogen atoms into what other kind of atom? A) Ion B) Carbon C) Bertllium D) Hellium E) Hydrogen
11)Outside the core of the Sun is the radiation zone, where light and heat radiate outward like any hot object does. But higher up in the Sun, gases rise up and sink back down in circulations. What is this zone called? A) Chromosphere B) Transition Zone C) Photsphre D) Cornona E) Convection Zone F) Astmosphere
12)What is the word for the brightness that a star would have if it were moved to a standard distance (10 parsecs) from Earth? A) Absolute magnitude B) Apparent brightness C) Luminosity D) Absolute brightness E) Apparent magnitude
Explanation / Answer
9. A.It splits the the lines into multiple parts. The zeeman effect is the effect of splitting a spectral line into several components in the presence of a static magnetic field.
10. D. Helium. In the reaction the hydrogen is converted to helium.
11. E. Convection Zone. The convection zone is a turbulent mass of material through which the radiation cannot pass as the temperature is too low. Giant convection currents are set up with hot matter rising and the cooler matter sinking
12. A. Absolute magnitude. Absolute magnitude is the magnitude the star would have if it were at a standard distance of 10 parsecs away.
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