Download Sun Test Answers

The Sun
Name_______________________________
1. The Sun is about _____________ times the diameter of the Earth
a) 25 b) 100 c) 110 d) 125
2. The visible surface of the Sun is about ____________°F
a) 5500 b) 10000 c) 28000 d) 60000
3. The core temperature of the Sun is about ____________°F
a) 15 000 000 b) 27 000 000 c) 50 000 000 d) 100 000 000
4. The Sun is relatively rich in heavier elements. a) true b) false
5. The Sun was born about ___________years ago.
a) 1.2 billion b) 4.6 billion c) 10 billion d) 15 billion
6. The life expectancy of our star is
a) 1.2 billion b) 4.6 billion c) 10 billion d) 15 billion
7. Light from the core gets scattered in the ____________ zone, so that a single photon
may take 100000+ years to pass through.
a) convective b) corona c) chromosphere d) radiative
8. The lowest layer of the solar atmosphere from where light we see is emitted.
a) chromosphere b) convective zone c) radiative zone d) photosphere
9. The chromosphere is made up of
a) solar convection cells b) granulation cells c) spicules d) photons
10. The hottest layer of the solar atmosphere
a) corona b) photosphere c) chromosphere d) transition region
11. The sun is made up of mostly
a) hydrogen and oxygen b) hydrogen and helium c) carbon, hydrogen and oxygen
d) helium and oxygen
12. Emerge where dense bundles of magnetic field lines break through the sun’s surface.
a) spicules b) photons c) sunspots d) granulation cells
13. The number of sunspots is a constant number once the sunspot cycle begins.
a) true b) false
14. Sunspots first appear at
a) higher latitudes b) higher longitudes c) lower latitudes d) lower longitudes
15. Over the course of a sunspot cycle, the sunspots tend to move
a) away from the equator b) toward the equator c) along the same east west path
16. The sunspot cycle last about
a) 11 weeks b) 11 months c) 11 years d) 22 years
17. The polarity of sunspots is the same in both the northern and the southern solar
hemispheres. a) true b) false
18. Shows the magnetic fields in the solar photosphere with black and white representing
different polarities.
a) Lasco C2 images b) Lasco C3 images c) SDO/HMI Continuum
d) SDO/HMI Magnetogram
19. Shows the inner solar corona up to 5.25 million miles away from the sun.
a) Lasco C2 images b) Lasco C3 images c) SDO/HMI Continuum
d) SDO/HMI Magnetogram
20. The image produced by the Extreme ultraviolet Imaging Telescope (EIT) of the hottest
material is taken at ____________Angstroms.
a) 171 b) 195 c) 284 d) 304
21. Looks very much like the sun in the visible spectrum. Sunspots are visible in this image.
a) Lasco C2 images b) Lasco C3 images c) SDO/HMI Continuum
d) SDO/HMI Magnetogram
22. By analyzing the sound waves that move through the sun’s interior, we are able to determine
what’s happening inside the Sun. The study of these waves is called
a) heliogeology b) heliocosmology c) heliotopology d) helioseismology
23. If the Sun produces a low frequency (low sounding) note, the information is coming from
a) the surface of the sun b) slightly below the surface of the sun
c) deep within the sun d) slightly above the surface of the sun
24. The core is made up of a gaseous soup of charged particles we call
a) photons b) plasma c) spicules d) positrons
25. This same gaseous soup of charged particles is found in lightning.
a) true b) false
26. In the core, protons fuse together and release small packets of heat and light called
a) photons b) plasma c) spicules d) positrons
27. This gaseous soup of charged particles is made up of what two elementary particles?
a) protons and electrons b) protons and neutrons c) neutrons and electrons
d) positrons and electrons
28. The balance between the outward pressure of nuclear reactions in the core and inward
pressure of gravity.
a) stellar equilibrium b) hydromorpic equilibrium c) hydroponic equilibrium
d) hydrostatic equilibrium
29. The second layer moving outward from the sun’s core.
a) radiative zone b) chromosphere c) corona d) convective zone
30. The coolest of the regions listed
a) corona b) core c)convective d) radiative
31. Photons take about ____________to move through the convective zone
a) 100 000+ years b) 30 months c) 30 weeks d) 30 days
32. The “random walk” describes the movement of photons through the
a) radiative zone b) convective zone c) transition zone d) core
33. The motion of matter in a lava lamp is similar to the motion of photons in the
a) radiative zone b) convective zone c) transition zone d) core
34. The rising and sinking of plasma at the Sun’s surface produces the property known as
a) granulation b) spicules c) coronal mass ejections d) solar flares
35. As the magnetic field lines emerge from the solar surface and twist, they may touch, short
circuit, explode and produce
a) granulation b) spicules c) coronal mass ejections d) solar flares
36. Crossing magnetic field lines can fling nets of plasma into space. These are known as
a) granulation b) spicules c) coronal mass ejections d) solar flares
37. Needed for the sun to produce a magnetic field.
a) movement of photons through the radiative zone
b) movement of photons through the convective zone
c) movement of plasma through the radiative zone
d) movement of plasma through the convective zone
38. A second factor in the production of the sun’s magnetic field.
a) differential rotation in the sun’s layers
b) differential rotation in the sun’s corona
c) differential rotation in the sun’s core
39. Light from the sun reaches earth in about
a) 100 000+ years b) 30 weeks c) 30 days d) 8 minutes and 20 seconds
40. Label the diagram below
solar flares
photosphere
convective zone
corona
radiative zone
sunspots
core
chromosphere