Question : What fuel is the source of energy from the Sun : 2161589
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
61) What fuel is the source of energy from the Sun?
62) Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.
63) Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.
64) Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.
65) Light behaves as a ________.
C) both a wave and a particle
D) neither a wave nor a particle
66) The wavelength of ________ is longer than the wavelength of yellow light.
67) Yellow stars have a higher luminosity than ________ stars.
68) Shorter wavelengths correspond to ________ energetic photons.
69) Dark-line (absorption) spectra can be used to identify the ________ present in stars.
70) In the case of light, when a source is moving away, its light appears ________ than it actually is.
71) Galileo ________ telescopes.
A) did his work before the invention of
B) rarely used
C) built the first
D) benefited from and for his observations came to almost exclusively use
72) Sir Isaac Newton built and used ________ telescopes.
73) All of the world's largest telescopes are of the ________ type.
74) Radio telescopes have an advantage over optical telescopes in that they can be used ________.
A) in all four seasons
B) to detect very short wave radiation
C) to detect visual imagery of pulsars
D) during daylight hours
75) Radio telescopes are generally ________ than are optical telescopes.
A) smoother in surface
B) much simpler
C) much larger in size
D) more precise (higher resolution)
76) Sunspots appear dark because they are ________ than the surrounding solar surface.
A) much closer to the Sun's core
C) less ionized
D) more energized
77) The Sun's energy results from the conversion of ________ nuclei into helium nuclei.
78) The Sun is considered a(n) ________ star.
79) The energy from nuclear fusion is produced by the conversion of ________.
A) mass to energy
B) particles to waves
C) matter to anti-matter
D) all of the above are accurate
80) Astronomers currently estimate sunspots to be about ________ degrees cooler than the rest of the surface.
81) Visible light emitted from the celestial bodies is only a small part of an array of energy called ________ radiation.
82) Light can be described as a stream of fast-moving particles called ________.
83) The motion of a star can be determined using the ________ effect.
B) Blue shift
84) A(n) ________ spectrum is produced when white light is passed through a comparatively cool gas under low pressure.
C) dark-line (absorption)
D) red shift
85) The first scientist to use a telescope for astronomical purposes was ________.
86) When several radio telescopes are connected together, the resulting network is called a(n) ________.
B) adaptive optic
C) radio interferometer
87) Streams of protons and electrons emitted from the Sun are known as the solar ________.
88) The nuclear reaction process of converting hydrogen nuclei into helium nuclei is called the ________ chain.
89) The Sun is composed almost entirely of two gases. They are hydrogen and ________.
90) The amount of energy released during a nuclear reaction was established by the well-known scientist named ________.
A) Albert Einstein
B) William Hershel
C) Christiaan Huygens
D) Enrico Fermi
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
91) Describe the concept of "red shift" and how this observation relates to theories that the universe is expanding.
92) Compare and contrast the various types of telescopes, including radio telescopes. What are the advantages and disadvantages of each one? Are there other considerations when choosing one telescope over another besides optical clarity or magnification?
93) Discuss the features and characteristics of the Sun? Are they thought to be unique to the Sun or are they typical of other stars? How do any of these structures relate to the process of nuclear fusion which is thought to produce the Sun's energy?