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Jeopardy

Jeopardy. Astronomy Chapter 4 Review Game. Select a Category. In materials like glass or water the speed of light is _________.  A. Reduced B. Increased C. The same as in vacuum D. Sometimes reduced and sometimes increased. 10 point. Check. Energy. Reduced. 10 point.

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Jeopardy

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  1. Jeopardy Astronomy Chapter 4 Review Game

  2. Select a Category

  3. In materials like glass or water the speed of light is _________. A. ReducedB. IncreasedC. The same as in vacuumD. Sometimes reduced and sometimes increased 10 point Check

  4. Energy Reduced 10 point Back to Category Slide

  5. An object is moving very fast perpendicularly to your line of sight. What shift will you observe in its spectrum? A. Blue shiftB. Red shiftC. Yellow shiftD. No shift 20 points Check

  6. No shift 20 points Back to Category Slide

  7. Work and Power When astronomers study the light emitted from the Sun they notice that the light emitted from the east limb (edge) is blueshifted while the light emitted west limb is redshifted. The reason for this is that  A. The Sun contains different chemicals that emit different colors.B. The distance between the Earth and the Sun is constantly changing.C. The Sun is rotating.D. The two opposing limbs have different surface temperatures. 30 points Check

  8. The Sun is rotating. 30 points Back to Category Slide

  9. A night vision camera A. Is just much more sensitive to visible light than your eyes.B. Uses a detector sensitive to infrared light, so you can see objects that are warmer than their surroundings.C. Can only detect green photons, which reflect well in the dark, but which our eyes have trouble seeing.D. Uses a detector sensitive to X-ray light, so you can see through the dark. 40 points Check

  10. Uses a detector sensitive to infrared light, so you can see objects that are warmer than their surroundings. 40 points Back to Category Slide

  11. ________ range in wavelength from millimeters to hundreds of meters.  A. X-raysB. Gamma raysC. Ultraviolet wavesD. Visible light wavesE. Radio waves 10 points Check

  12. Radio waves 10 points Back to Category Slide

  13. Star A is blue, Star B is yellow, and Star C is red. Which one of these is the hottest star? A. Star A.B. Star B.C. Star C.D. From color, temperature cannot be predicted. 10 point Check

  14. Star A 10 point Back to Category Slide

  15. The electrons are quantized in an atom. That means  A. The electrons are in bulk.B. The electrons can stay only in specific orbits.C. The quantity of electrons keep changing.D. All of the above. 20 points Check

  16. The electrons can stay only in specific orbits. 20 points Back to Category Slide

  17. Forms of Energy ________ occurs when an electron in an atom jumps from a lower energy orbital to a higher energy orbital.  A. IonizationB. AccelerationC. ExcitationD. Relaxation 30 points Check

  18. Excitation 30 points Back to Category Slide

  19. You are heating a jar full of hydrogen and observing its spectrum. When you add more hydrogen to it, what happens to the spectral lines in the spectrum?  A. The positions of emission lines will change.B. You will start seeing lots of absorption lines instead of emission lines.C. The positions of emission lines will remain the same but the lines will get broader and brighter.D. There will be no change in the spectrum. 40 points Check

  20. Forms of Energy The positions of emission lines will remain the same but the lines will get broader and brighter. 40 points Back to Category Slide

  21. What is an atmospheric window?  A. A region in the atmosphere where light can get through.B. A region in the atmosphere where infrared radiation can penetrate.C. A range of wavelengths of electromagnetic radiation which transmit through the Earth's atmosphere.D. A part of the upper atmosphere with depleted ozone. 50 points Check

  22. A range of wavelengths of electromagnetic radiation which transmit through the Earth's atmosphere. 50 points Back to Category Slide

  23. Which of the following electromagnetic waves are completely blocked by the Earth's atmosphere? A. Radio wavesB. Visible lightC. InfraredD. X-rays 10 point Check

  24. X-rays 10 point Back to Category Slide

  25. A(n) ___________ spectrum has bright lines on dark background. A. AbsorptionB. EmissionC. ContinuousD. None of these 20 points Check

  26. Emission 20 points Back to Category Slide

  27. Energy Conversion Wien's law allows astronomers to measure what property of a star?  A. The surface temperature of the star.B. The chemical composition of the star.C. The distance to the star.D. All of the above. 30 points Check

  28. Energy Conversion The surface temperature of the star. 30 points Back to Category Slide

  29. As a solid is heated (from a low to a high temperature) the radiated light will move through what sequence of colors? A. Red, yellow, blue.B. Blue, yellow, red.C. Yellow, red, blue.D. Blue, red, yellow.E. It depends on what solid is being heated. 40 points Check

  30. Red, yellow, blue. 40 points Back to Category Slide

  31. Conservation of energy requires that if an atom absorbs a photon.  A. An electron ends up with an energy equal to that of the photon.B. The atom must emit an electron.C. The atom must emit a photon.D. An electron rises to a new orbital with an energy equal to that of the previous orbital plus the energy of the photon. Check 50 points

  32. An electron rises to a new orbital with an energy equal to that of the previous orbital plus the energy of the photon. 50 points Back to Category Slide

  33. If a photon's frequency increases its wavelength  A. Will decrease.B. Will increase.C. Will not change. 10 point Check

  34. Problems Will decrease. 10 point Back to Category Slide

  35. True / False A temperature of 0 Kelvin means there is essentially no motion at the atomic level.  20 points Check

  36. True 20 points Back to Category Slide

  37. In the Orion constellation are stars Rigel, a blue supergiant, and Betelgeuse, a red supergiant. Which star has a greater surface temperature?  A. Rigel.B. Betelgeuse.C. They have the same surface temperature.D. There is not enough information to tell. 30 points Check

  38. Rigel 30 points Back to Category Slide

  39. Spectral lines shifted toward higher frequencies are called _____.  A. Red-shifted B. Blue-shifted 40 points Check

  40. Blue-shifted 40 points Back to Category Slide

  41. What conclusion can we draw about the motion of a star that does not show any Doppler shift in its spectrum?  A. The star is not moving.B. The star is spinning fast.C. The star does not have a magnetic field.D. The star may be moving perpendicular to our line of sight.E. We cannot draw any conclusions about the motion of this star. 50 points Check

  42. The star may be moving perpendicular to our line of sight. 50 points Back to Category Slide

  43. Congratulations!You have completed the game of Jeopardy.

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