Astronomy Quizzes 4-6 ( Answers).docx

Unit 4: Question 1 1 / 1 point Adaptive optics : (Answer:) corrects for the blurring that occurs from the atmosphere in telescopic imagery Question 2 1 / 1 point Orbiting infrared telescopes create an advantage by … (Answer:) being able to stay cool in space without malfunctioning Question 3 1 / 1 point Compared to visible light waves, radio waves are ... ( Answer:) long and provide low resolution Question 4 1 / 1 point The best places to locate telescopes are - High - Dry - Dark Question 5 1 / 1 point Choose the 3 components of the system for measuring radiation from astronomical sources. - The detectors - The wavelengh sorting device - The telescope

Question 6 1 / 1 point CCD stands for : (Answer) charge-coupled device Question 7 1 / 1 point A radio dish can also be used as a radar telescope if it is equipped with a powerful transmitter as well as a receiver. (TRUE) Question 8 1/1 point Chromatic aberration is (Answer) : when a telescopic image become blurry due to the properties of glass lenses. Question 9 1/1 point Most modern professional telescopes are ________ telescopes. Answer: Reflecting Question 10 1/1 point Gamma rays can be detected … Answer: in space and on Earth's surface Question 11 1/1 point A 4-m telescope gathers ____ times the light of a 1-m telescope. Answer : 16 Question 12 1/1 point Above the atmosphere, stars would still twinkle in space. FALSE

Question 13 1 / 1 point Using different eyepieces in a telescope helps adjust the _________ of the image. Answer : Magnification Question 14 1/1 point Radar astronomy can be used to determine the ___ distance ___ to an object in space. Question 15 1/1 point With ancient astronomical observatories, like Stonehenge, the structures helped .... Answer : Track dates Question 16 1/1 point Which of the following types of radiation are only observed from space? Answer : X-rays Question 17 1 / 1 point ______ astronomy involves transmitting radio waves to an object and recording the time it takes the waves to hit that object and come back. Answer: Radar Question 18 1/1 point The Hubble Space Telescope mirror was an example of perfect craftsmanship and engineering which allowed for the creation of high-resolution images. FALSE

Question 19 1 / 1 point The precision of detail in an image is called __________. Answer: Resolution Question 20 1 / 1 point Radio astronomers can achieve better resolution through the use of _______infrometers________. Question 21 1 / 1 point The primary job of a telescope is to capture as much radiation as possible from a source and bring it to a _____ for viewing/analysis Answer: focus Question 22 1/1 point A telescope that has only a lens and an eyepiece with no other lenses or mirrors is called a __________ telescope. Answer: refracting Question 23 1/1 point __________ is a computer process that monitors the sag of a mirror under its own weight and helps correct for it. Answer: active control Question 24 1/1 point An aperture is (answer) .. the diameter of the opening in a telescope

Unit 5: Question 1 : The ________ is a cloud of gas and dust from which the solar system formed. (Answer): solar nebula Question 2: All planets orbit around the Sun in the same direction, except for Saturn. (FALSE) Question 3: Jovian planets are composed mostly of ... (Answer): ices, gases, and liquids Question 4: Which four planets are considered the "terrestrial" planets? (Answer): Mercury, Venus, Earth, Mars Question 5: There are an estimated __________ comets in the Oort cloud. (Answer): 1 trillion Question 6: _________ are the first small bodies that coalesce before leading to protoplanets (Answer): planetesimals Question 7: A comet's tail always points away from the sun, but of the two tails, which one curves? (Answer): dust tail Question 8: Most of the asteroids in the solar system are found in between Mars and Jupiter. (TRUE)

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