Denby Science - Ms. H - MAKE UP WORK
Cosmology Unit – FINAL EXAM PRACTICE TEST (26 questions)1. In the raisin bread analogy for the universe, what represents interstellar space?airflourdoughraisins2. How can one explain the fact that nearly all other galaxies appear to be moving farther away from us?The universe is expanding.The apparent motion is just an optical illusion.The solar system is at the center of the universe.The Doppler effect is causing the distances to expand.3. The expansion of the universe has also been compared to the inflation of a balloon. Suppose that before you inflate the balloon, you draw dots on the surface of the balloon to represent different galaxies. After inflating the balloon, what observation would you expect to make?All of the dots should be equally far apart.All of the dots should have clustered on one part of the balloon.The distance between each dot should have increased by the same amount.The distance between faraway dots should have increased more than the distance between nearby dots.4. How can Edwin Hubble's discoveries be summarized?The Milky Way is like a lump of expanding raisin bread.The cosmic microwave background radiation is a remnant of the Big Bang.There are galaxies outside our own Milky Way, and nearly all of them are getting farther away.The steadystate theory is not a correct explanation for the continuing evolution of the universe.5. What evidence supports the Big Bang Theory? Select all that apply.the Hubble lawthe cosmic redshiftthe younger age of distant galaxiesthe cosmic microwave background radiation6. What does the word cosmic in the term cosmic microwavebackground radiation refer to?a type of lightfound in spaceevidence for the Big Bangexists everywhere we look7. What occurred during nucleosynthesis?the creation of atomic nucleithe formation of galactic nucleithe first nuclear reactions inside starsthe production of the cosmic microwave background radiation through nuclear fusion8. The term Big Bang theory basically refers to what?the explosion of protons and neutrons to create atomsthe collision of galaxies to form larger galactic structuresthe sudden expansion of the universe from a hot, dense statethe continued evolution of the universe, ending with the Big Crunch9. Nucleosynthesis began when _____ and ended when _____.the Big Bang occurred? the Big Crunch occurrednuclear reactions could first occur? matter had condensed into galaxies and starsthe cosmic microwave background radiation formed? dark energy replaced it as the dominant energy formthe universe had cooled enough for atoms to combine? protons and neutrons were too far apart to form nuclei10. According to the _____ law, a galaxy two times as far away from Earth as a second galaxy will be moving away approximately twice as fast.SaganHubbledark mattercosmological11. In the raisin bread analogy for the universe, what do the raisins represent?starsgalaxiesblack holesinterstellar space12.The cosmic redshift is a form of _____.galaxy contractionthe Doppler effectthe steady state theorycosmic microwave background radiation13. Whose discoveries can BEST be summarized by the following statement?: There are galaxies outside our own Milky Way, and nearly all of them are getting farther away.Kelvin'sSagan'sHubble'sDoppler's14. Compared to a stationary galaxy, light from a galaxy that is moving away from Earth will appear _____.bluerredderthe same15. The creation of atomic nuclei occurred during _____.the Big Bangthe Big Crunchnucleosynthesisthe period of cosmic microwave background radiation16. At the time of the Big Bang, what was packed into a very small space?atomsmatterenergygalaxieselements17. When the early universe cooled enough for atoms to form, _____ began.dark energythe Big Bangnucleosynthesisthe cosmic microwave background radiation18. Compared to a stationary galaxy, light from a galaxy that is moving away from Earth will appear _____.bluerredderthe same19. Galaxy A is located 200 million lightyears from Earth, while galaxy B is located 600 million lightyears from Earth. According to the Hubble law, how does the motion of the two galaxies compare?Galaxies A and B are moving away from Earth at the same rate.Galaxy A is moving away from Earth three times as fast as galaxy B.Galaxy B is moving away from Earth three times as fast as galaxy A.20. According to the Hubble law, a galaxy twice as far from Earth will be moving away approximately _____.half as fasttwice as fastfour times as fastat the same speed21. Galaxies are seen moving away from us because _____.space itself is expandingthe universe is considered "open"Earth is at the center of the universethe cosmic microwave background radiation pushes them22. Select all the true statements about the cosmic microwave background radiation.It was discovered by Edwin Hubble.It is found only in some sections of the universe.It indicates that the universe was once very hot.It can't be explained by the steady state theory.It indicates that the universe has a temperature of around 3 K.23. What does the term nucleosynthesis refer to?the creation of atomic nucleithe formation of galactic nucleithe start of nuclear reactions inside starsthe production of dark energy through nuclear fusion24. Compared to a stationary galaxy, light from a galaxy that is moving toward Earth will appear _____.bluerredderthe same25. Galaxies that are closer to Earth appear to be _____ Earth.older thanyounger thanthe same age as26. According to the Hubble law, a galaxy that is four times as far from Earth will be moving away approximately _____.a quarter as fasttwice as fastfour times as fastat the same speed ................
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