1. Which is the origin of the sun’s energy?
A. charged particles
B. burning hydrogen
C. solar flares
D. nuclear fusion
2. Which of the following protects Earth's atmosphere from solar wind?
A. convection currents
B. radiative zone
C. magnetosphere
D. hydrogen atoms
3. How have astronomers formed their ideas about the layers of the sun?
A. observing all the layers during total solar eclipses
B. using theoretical models combined with known data
C. Developing mathematical models based only on known data
D. making direct observations of the sun's layers
4. Two astronomers are viewing temperature data from each of the sun's layers, but the layers aren't identified. Describe one way the scientists can use temperature to identify which layer they are studying.
A. The lowest temperatures are from the core.
B. The highest temperatures are from the corona.
C. The lowest temperatures are from the photosphere.
D. The highest temperatures are from the radiative zone.
23 answers
B. The highest temperatures are from the corona.
1. Which is the origin of the sun’s energy?
A. charged particles
B. burning hydrogen
C. solar flares
D. nuclear fusion
A. charged particles
B. burning hydrogen
C. solar flares
D. nuclear fusion
D. nuclear fusion
2. Which of the following protects Earth's atmosphere from solar wind?
A. convection currents
B. radiative zone
C. magnetosphere
D. hydrogen atoms
A. convection currents
B. radiative zone
C. magnetosphere
D. hydrogen atoms
C. magnetosphere
3. How have astronomers formed their ideas about the layers of the sun?
A. observing all the layers during total solar eclipses
B. using theoretical models combined with known data
C. Developing mathematical models based only on known data
D. making direct observations of the sun's layers
A. observing all the layers during total solar eclipses
B. using theoretical models combined with known data
C. Developing mathematical models based only on known data
D. making direct observations of the sun's layers
B. using theoretical models combined with known data
4. Two astronomers are viewing temperature data from each of the sun's layers, but the layers aren't identified. Describe one way the scientists can use temperature to identify which layer they are studying.
A. The lowest temperatures are from the core.
B. The highest temperatures are from the corona.
C. The lowest temperatures are from the photosphere.
D. The highest temperatures are from the radiative zone.
A. The lowest temperatures are from the core.
B. The highest temperatures are from the corona.
C. The lowest temperatures are from the photosphere.
D. The highest temperatures are from the radiative zone.
B. The highest temperatures are from the corona.
Which is the cause of the sun's magnetic properties?
rapid spinning of metals in the core
uniform clockwise rotation of charged particles
uneven churning of plasma
upward movement of super-heated gases in the convective zone
rapid spinning of metals in the core
uniform clockwise rotation of charged particles
uneven churning of plasma
upward movement of super-heated gases in the convective zone
The cause of the Sun's magnetic properties is the uneven churning of plasma.
What characteristic is shared by sunspots, solar flares, and coronal mass ejections? Select the two correct responses.
A. They appear as bright spots on the sun's surface.
B. They tend to occur during active periods of the solar cycle.
C. They are caused by outward fluctuations of the sun's magnetic field.
D. They appear as dark spots on the sun's surface.
A. They appear as bright spots on the sun's surface.
B. They tend to occur during active periods of the solar cycle.
C. They are caused by outward fluctuations of the sun's magnetic field.
D. They appear as dark spots on the sun's surface.
B. They tend to occur during active periods of the solar cycle.
C. They are caused by outward fluctuations of the sun's magnetic field.
C. They are caused by outward fluctuations of the sun's magnetic field.
Which describes a difference between solar wind and a geomagnetic storm? Select the three correct answers.
Geomagnetic storms occur only occasionally; solar wind is constant.
Geomagnetic storms are constant; solar wind occurs only occasionally.
Geomagnetic storms are associated with CMEs; solar wind is associated with the constant activity in the sun.
Solar wind sometimes results in geomagnetic storms; geomagnetic storms do not cause solar wind.
Geomagnetic storms travel at the speed of light, while solar wind takes four days to reach Earth.
Geomagnetic storms occur only occasionally; solar wind is constant.
Geomagnetic storms are constant; solar wind occurs only occasionally.
Geomagnetic storms are associated with CMEs; solar wind is associated with the constant activity in the sun.
Solar wind sometimes results in geomagnetic storms; geomagnetic storms do not cause solar wind.
Geomagnetic storms travel at the speed of light, while solar wind takes four days to reach Earth.
Geomagnetic storms occur only occasionally; solar wind is constant.
Geomagnetic storms are associated with CMEs; solar wind is associated with the constant activity in the sun.
Solar wind sometimes results in geomagnetic storms; geomagnetic storms do not cause solar wind.
Geomagnetic storms are associated with CMEs; solar wind is associated with the constant activity in the sun.
Solar wind sometimes results in geomagnetic storms; geomagnetic storms do not cause solar wind.
How does solar weather affect Earth's magnetosphere? Select the two correct answers.
It generates auroras.
It forms radiation belts.
It causes geomagnetic storms.
It develops solar wind.
It generates auroras.
It forms radiation belts.
It causes geomagnetic storms.
It develops solar wind.
It generates auroras.
It causes geomagnetic storms.
It causes geomagnetic storms.
Which would scientists predict might happen due to solar flares?
electrical systems in satellites will fail
power grid operations will go offline
high-frequency radio waves used for radio communication will be blocked
radio navigation systems and global positioning systems will be inaccurate
electrical systems in satellites will fail
power grid operations will go offline
high-frequency radio waves used for radio communication will be blocked
radio navigation systems and global positioning systems will be inaccurate
All of the given options are potential effects of solar flares.
hich of these should you check for the activity of if the skies are clear but the power to your house goes out?(1 point)
Responses
solar wind
solar wind
solar energetic particles
solar energetic particles
solar flares
solar flares
coronal mass ejections (CMEs)
Responses
solar wind
solar wind
solar energetic particles
solar energetic particles
solar flares
solar flares
coronal mass ejections (CMEs)
solar flares
Which prediction is most likely to happen due to solar energetic particles during a solar radiation storm?(1 point)
Responses
Satellites will need to be repositioned due to satellite drag.
Satellites will need to be repositioned due to satellite drag.
Radio communications at high latitudes will be blocked.
Radio communications at high latitudes will be blocked.
Power will go out in cities across the world.
Power will go out in cities across the world.
Radio navigation and GPS systems will be inaccurate.
Radio navigation and GPS systems will be inaccurate.
Responses
Satellites will need to be repositioned due to satellite drag.
Satellites will need to be repositioned due to satellite drag.
Radio communications at high latitudes will be blocked.
Radio communications at high latitudes will be blocked.
Power will go out in cities across the world.
Power will go out in cities across the world.
Radio navigation and GPS systems will be inaccurate.
Radio navigation and GPS systems will be inaccurate.
Radio communications at high latitudes will be blocked.