Mini-Quiz: Characteristics of our Sun

1. How can the mass of the Sun be 300,000 times Earth's, when its diameter is only 100 times Earth's?

   The Sun is hotter on its surface, making it heavierSorry, not correct. Try another button. The density of the Sun is much greater than the Earth's, especially near the coreThat's correct. You are becoming a Champion. The gravity of the Sun increases its massGood try, but not right. Select another answer.

2. How do gamma rays at the core become visible light at the surface?

   Radiation is absorbed and re-emitted at a lower frequencyCorrect answer. You are a genius! Visible light rays are the same as gamma raysSorry, not correct. Try another button. The amplitude of the radiation drops as it moves to the surfaceOops! Wrong answer. Re-read the question and try again.

3. What are sunspots?

   Spots you see after staring at the Sun too longOops! Wrong answer. Re-read the question and try again. Optical illusions caused by the Sun's atmosphereGood try, but not right. Select another answer. Cooler areas on the surface of the Sun that appear darkerThat's correct. You are becoming a Champion.

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