The Sun and Stars Final Quiz

What causes the solar cycle?

• The planets spinning around the Sun

• The warping of the Sun's magnetic field

• Jupiter's gravitational tug on the Sun

• Sunspots

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How can we tell whether the Sun is closer to solar minimum or solar maximum?

• By observing the brightness of the Sun

• By measuring the Sun's energy output

• By observing the amount of sunspots over time

• By measuring the gravitational strength of the Sun

If the Sun had little to no Sunspots, where in the solar cycle is it possibly at?

• solar minimum

• solar maximum

• solar mayo

• solar medium

The sun converts matter into energy in the

• corona.
• radiative zone
• convection zone
• core

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Most of the sun’s energy is a result of

• nuclear fusion  
• nuclear fission
• atomic reactions
• coronal mass ejection

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When hydrogen nuclei fuse into helium nuclei

• the nuclei die.
• energy is released.
• particles collide
• particles neutralize.

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Sunspots vary in a cycle that lasts about

• 110 yrs
• 11,000 yrs
• 11 yrs
• 110,000 yrs

What elements make up most of the sun’s mass?

• carbon and oxygen
• carbon and hydrogen
• helium and nitrogen
• hydrogen and helium

What is an explosion on the sun that gives out huge amounts of energy?

• Sun Spot
• Solar Flare
• Sun Ray
• Sun Gases

When two or more nuclei fuse to form another nucleus; the source of the sun's energy.

• nuclear fusion

• nuclear bond

• nuclear flare

• nuclear fusing

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