Chapter 16 (The Origin of the Solar System) Quiz

Chapter 16 (The Origin of the Solar System) Quiz -...

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1. How do most astronomers believe that planets form? a. From the material ejected when two stars collide. b. In a spinning disk of gas and dust that naturally forms around protostars. c. From material that is pulled from a star when another star passes nearby. d. In the collapse of the planetary nebula shell of material around a white dwarf. e. In the collapse of the planetary nebula shell of material around a neutron star. 2. What is the origin of the atoms of hydrogen, oxygen, and sodium in the perspiration that exits your body during an astronomy exam? a. All of these elements were synthesized inside stars more than 4.6 billion years ago. b. All of the elements were produced in the first few minutes after the big bang event. c. The hydrogen nuclei were produced a few minutes after the big bang event 13.7 billion years ago, and the oxygen and sodium nuclei were synthesized inside stars more than 4.6 billion years ago. d. They were all fused deep inside Earth. e. None of the above. 3. What evidence do we have that planets form along with other stars? a. At radio wavelengths, we detect cool dust disks around young stars. b. At infrared wavelengths, we detect large, cool dust disks around stars. c. At visible wavelengths, we see disks around the majority of single young stars in the Orion nebula. d. Both a and b above. e. All of the above. 4. How do low-density dust disks differ from dense disks of gas and dust that are detected around stars? a. Low-density dust disks only form around low-mass stars. b. Dense disks of gas and dust only form around high-mass stars. c. Low-density dust disks are found where planets have already formed. d. Dense disks of gas and dust are found where planets have already formed. e. Both a and b above.
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Chapter 16 (The Origin of the Solar System) Quiz -...

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