Short description 1 Name: Class: _ Date: _ practice Quiz 4 Multiple an option Identify the selection that finest completes the explain or answer... summary


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Name: ______________________Class: _________________Date: _________Practice Quiz 4 Multiple selection Identify the an option that ideal completes the explain or answer the question. ____1. What is the wavelength that the longest wavelength light that have the right to be seen v the person eye? a. 400 nm b. 4000 nm c. 7000 nm d. 700 nm e. 3×108 m____2. ____ has (have) wavelengths that are much longer than visible light. A. Gamma-rays b. Ultraviolet irradiate c. Infrared radiation d. X-rays e. A, b and also d above____3. ____ has actually (have) wavelengths the are much shorter than clearly shows light. I. II. III. IV. A. B. C. D. E.Gamma-rays Ultraviolet light Infrared radiation X-rays ns & II ns & IV II & III II, III, & IV I, II, & IV____4. Astronomers develop telescopes on top of mountains since a. There is much less air to dim the light. B. The seeing is better. C. CCDs work far better when there is less oxygen in the air. D. All of the over e. A and b____5. Radio telescopes have poor resolving power since a. Your diameters are so large. B. The power they receive is not electromagnetic radiation. C. Radio waves have actually long wavelengths. D. A and b e. None of the above1ID: A Name: ______________________ID: A____6. Ultraviolet radiation native a star a. Will certainly not pass through Earth"s atmosphere and reach the ground. B. Has a wavelength that is much longer than the visible light emitted through the star. C. Has a wavelength that is shorter than the x-rays emitted through the star. D. A and b e. B and c____7. A new generation the ground-based telescopes is at this time being built that overcomes the restrictions of the older huge telescopes. Several of these new telescopes a. Usage segmented mirrors. B. Use mirrors that are very thin. C. Use energetic optics to regulate the shape of the mirror. D. Every one of the above. E. No one of the above____8. Radio telescopes are essential in astronomy due to the fact that a. They have the right to detect cool hydrogen. B. They have high magnification. C. The deserve to detect interstellar dust clouds. D. Castle are an extremely inexpensive to construct on tops of mountains. E. Lock don"t need to be as big as optical telescopes to accomplish the exact same resolving power.____9. The a. B. C. D. E.____ 10. Far a. B. C. D. E.sidereal journey of a telescope mounting have to turn the telescope southward about the polar axis. Eastward about the polar axis. Westward about the polar axis. Northward about the polar axis. None of the above infrared astronomy need to be done from high-flying aircraft because far infrared radiation is soaked up low in Earth"s atmosphere. Far infrared photons are quite energetic. Much infrared telescopes space not very heavy. Far infrared sources are very bright. No one of the above____ 11. A ____ is a item of glass with many little parallel present etched ~ above its surface to produce a spectrum. A. Grating b. Spectrograph c. Photometer d. Charge-coupled maker e. Prism2 Name: ______________________ID: A____ 12. The technique of connecting many telescopes with each other to integrate the pictures from each telescope is known as a. Abberation. B. Solving power. C. Active optics. D. Adaptive optics. E. Interferometry. ____ 13. Interferometry a. Is provided to enhance the fixing power. B. Reduce the chromatic aberration the a telescope. C. Works only for huge x-ray and ultraviolet telescopes. D. Requires that radio telescopes be in ~ a few hundred feet of each other. E. Nobody of the above ____ 14. The ____ the a telescope is a measure up of its capacity to display fine detail and also depends ~ above the diameter that the objective. A. Light-gathering power b. Focal size c. Magnifying power d. Resolving power e. Spherical aberration ____ 15. I beg your pardon of the complying with telescopes must be used over Earth"s atmosphere? a. One optical telescope b. The VLBI telescope c. An x-ray telescope d. A radio telescope e. No one of the above ____ 16. The a. B. C. D. E.energy of a photon is proportional to the wavelength that the light. Is inversely proportional come the wavelength that the light. Depends just on the rate of the light. Depends just on the massive of the photon. Counts on both the mass and also speed the the photon.____ 17. Lengthy wavelength visible irradiate a. Will have a greater energy than brief wavelength clearly shows light. B. Will have a rate that is faster than brief wavelength light. C. Has a higher frequency than short wavelength visible light. D. Will appear blue in shade to the average human eye. E. Will show up red in color to the average human eye. ____ 18. I beg your pardon of the following types of electromagnetic radiation has the greatest frequency? a. X-rays b. Visible light c. Radio d. Gamma-rays e. Infrared radiation3 Name: ______________________ID: A____ 19. I beg your pardon of the following varieties of electromagnetic radiation has actually the the smallest frequency? a. X-rays b. Visible light c. Radio d. Gamma-rays e. Infrared radiation ____ 20. I beg your pardon of the following species of electromagnetic radiation has the greatest energy? a. X-rays b. Visible light c. Radio d. Gamma-rays e. Infrared radiation ____ 21. I beg your pardon of the following varieties of electromagnetic radiation has actually the lowest energy? a. X-rays b. Visible irradiate c. Ultraviolet d. Gamma-rays e. Infrared radiation ____ 22. One a. B. C. D. E.achromatic lens is supplied to correct spherical aberration in showing telescopes. Is offered to correct chromatic aberration in refracting telescopes. Is offered to exactly spherical aberration in refracting telescopes. Is provided to correct chromatic aberration in showing telescopes. Consists of two mirrors and also focuses the light earlier through the main mirror.____ 23. ____ is absorbed by water in Earth"s atmosphere and requires the telescopes for observing at this wavelengths be placed on hill tops or in space. A. Infrared radiation b. Ultraviolet radiation c. Radio tide radiation d. X-ray radiation e. Visible light ____ 24. Raising the diameter the a telescope I. II. III. IV. A. B. C. D. E.increases its irradiate gathering power. Boosts its solving power. Increases it magnifying power. Increases its chromatic aberration. I, II, III, & IV I, II, & III I, II, & IV III & IV ns & II4 Name: ______________________ID: A____ 25. I m sorry of the following features of a telescope identify its light gathering power? a. The focal size of the target b. The focal size of the eyepiece c. The diameter that the objective d. Size of the telescope tube e. Nobody of the above. ____ 26. What is the relationship in between color and also wavelength for light? a. Wavelength boosts from blue light to red irradiate b. Wavelength decreases indigenous blue light to red irradiate c. Every colors that light have actually the same wavelength. D. Wavelength depends on intensity not color. ____ 27. The a. B. C. D. E.main factor for building huge optical telescopes on the Earth"s surface ar is that there is a the majority of money in scientific research that demands to gain spent. To collect as lot light as feasible from pass out objects. Come nullify the blurring impacts of the Earth"s atmosphere and thus produce higher resolution images. To bring astronomical objects closer to do them brighter. The the heat temperatures the the Earth"s surface allow for easier telescope operation.____ 28. What statement listed below best defines the refraction that light? a. The absorption of light as it travels though a dense, transparent material. B. The dispersing out the white irradiate according to wavelength. C. The adjust in direction of a irradiate ray as it overcome to a medium of various optical density. D. The change in direction the a ray of light as it mirrors off a surface. ____ 29. Chromatic aberration occurs in a ____ telescope when ____. A. Reflecting; various colors the light carry out not emphasis at the same point. B. Refracting; various colors of light do not emphasis at the very same point. C. Reflecting; irradiate of various wavelengths get took in by the mirror. D. Refracting; light of various wavelengths get absorbed by the lens. ____ 30. The a. B. C. D. E.main reason for positioning many radio telescopes across a large area and combining the signals is come observe more objects in a shorter amount the time. Administer a back-up system if one or much more of the telescopes go down. To produce higher resolution images. To protect against interference in between signals indigenous the different telescopes. Come account because that the movement of objects in the skies as a an outcome of the Earth"s rotation.____ 31. Radio telescopes are ____ telescopes. A. Reflecting b. Refracting c. Deflecting d. Link e. Retracting5 Name: ______________________ ____ 32. The a. B. C. D.ID: Alargest solitary dish radio telescope is ____ . Rely on cables in a valley buried deep in a mine underground orbiting in space suspended native balloons in the top atmosphereEssay 33. How do atmospheric home windows limit observations made indigenous Earth"s surface? 34. Why need to telescopes that observe in the much infrared it is in cooled? 35. What are sources of light pollution and also how do those affects huge observations?6 ID: APractice Quiz 4 Answer section MULTIPLE an option 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32.ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS:D C E E C A D A C A A E A D C B E D C D E B A E C A B C B C A APTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS:1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1ESSAY 33.

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ANS: Answer not provided. PTS: 11