<!--
/** 
 *  1/19/05 (A. Gonzalez) Chapter No., Book No. and Title Added
 *  6/20/05 Modified: (J. Lucca) Removed frames from quizzes. 
 *  7/7/05 Modified: (J. Lucca) 
 *     Can turn off HISTOGRAM and randomize_questions on any ch##.htm page  
 *     by setting them here to false. Both default to true in quiz.js.
 *  12/1/05 Modified: (J. Lucca) 
 *     Can turn off histogram SECTIONS and/or TYPES on any ch##.htm page
 *     by setting them here to false. Both default to true in quiz.js.
 */
 
//////////////////////////////////////////////////////////////////////////////
// HISTOGRAM AND RANDOMIZE OPTIONAL SETTINGS
//    Can turn off per quiz or leave defaults (handled in quiz.js) as true.
//////////////////////////////////////////////////////////////////////////////
//HISTOGRAM = false;
//SECTIONS = true; 
TYPES = false;
//randomize_questions = true;


/**
 * Required settings for all quizzes:
 *    chapter_no, book_no, book_title
 *
 * Required when HISTOGRAM = true:
 *    At least a section_title[] with its matching q#section for each question
 *    or a type_title[] with its matching q#type for each question.
 *    Without at least one of these you won't get any histograms.
 */
 
// ////////////////////////////////////////////////////////////////////////////
// BEGIN PASTE - Paste any existing quiz javascript questions
//               between this comment and one just like it near bottom of page
// //////////////////////////////////////////////////////////////////////////// 

  
// General settings
var book_title = "21st Century Astronomy, 2e";
var book_no = 92443
var chapter_no = "04";
quiz_name = "21st Century Astronomy 2nd Edition, Chapter 4";
var confirm="/college/astronomy/studyspace/_content/_index/confirm.htm"
number_answers = new Array(4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4)
var number_questions = number_answers.length;

// Sections
section_title = new Array()   //Leave at least this line! Can delete ones under.
section_title[1] = "Section 4.1";
section_title[2] = "Section 4.2";
section_title[3] = "Section 4.3";
section_title[4] = "Section 4.4";
section_title[5] = "Section 4.5";
section_title[6] = "Section 4.6";
section_title[7] = "Section 4.7";

// Types
type_title = new Array();     //Leave at least this line! Can delete ones under. 
type_title[1] = "Factual";
type_title[2] = "Vocabulary";
type_title[3] = "Conceptual";

q1 = "How do we get <i>most </i>of our knowledge about our universe?";
q1a = "Through hands-on experimentation";
q1b = "Through observation of light from astronomical objects";
q1c = "As a result of space travel to distant stars";
q1d = "Through chemical analysis of rocks from astronomical objects";
q1answer = "b";
q1section = "1";
q1type = "1";
q1review = "";

q2 = "Light is a means of transporting";
q2a = "matter.";
q2b = "energy.";
q2c = "force.";
q2d = "charge.";
q2answer = "b";
q2section = "1";
q2type = "1";
q2review = "";

q3 = "Why did Galileo fail at obtaining the speed of light when he attempted to calculate it by measuring the time it took to travel between two points?";
q3a = "Light travels too fast.";
q3b = "Galileo used an incorrect equation.";
q3c = "Light cannot travel far enough to be measured in this manner.";
q3d = "Galileo was too old to make accurate measurements.";
q3answer = "a";
q3section = "2";
q3type = "3";
q3review = "";

q4 = "R&oslash;mer found that he measured different periods for the same satellite of Jupiter, demonstrating that";
q4a = "the mass of Jupiter was changing.";
q4b = "Kepler's laws were not always valid.";
q4c = "it took light a measurable amount of time to travel.";
q4d = "light travels infinitely fast.";
q4answer = "c";
q4section = "2";
q4type = "3";
q4review = "";

q5 = "Light can be generally described as";
q5a = "an electromagnetic wave.";
q5b = "a sound wave.";
q5c = "a shower of particles with mass.";
q5d = "a set of waves with mass.";
q5answer = "a";
q5section = "2";
q5type = "2";
q5review = "";

q6 = "The speed of light in space depends on";
q6a = "the amplitude of the light.";
q6b = "the wavelength of the light.";
q6c = "how fast the observer of the light is moving.";
q6d = "none of these&mdash;it is constant.";
q6answer = "d";
q6section = "3";
q6type = "1";
q6review = "";

q7 = "The frequency of a wave is defined as";
q7a = "the maximum excursion from the undisturbed position.";
q7b = "the number of wave crests passing a point in space each second.";
q7c = "the time of duration for one cycle.";
q7d = "the force of a wave as the wave crest passes.";
q7answer = "b";
q7section = "2";
q7type = "2";
q7review = "";

q8 = "As light's wavelength decreases,";
q8a = "its frequency increases.";
q8b = "its frequency decreases.";
q8c = "its speed increases.";
q8d = "its speed decreases.";
q8answer = "a";
q8section = "2";
q8type = "3";
q8review = "";

q9 = "The electromagnetic spectrum includes";
q9a = "visible light.";
q9b = "X-rays.";
q9c = "infrared radiation.";
q9d = "all of the above.";
q9answer = "d";
q9section = "2";
q9type = "1";
q9review = "";

q10 = "If an object is emitting light and moving toward you, the speed of the light you receive will be";
q10a = "more than the speed of light in a vacuum.";
q10b = "less than the speed of light in a vacuum.";
q10c = "exactly the speed of light in a vacuum.";
q10d = "There is no way to predict this.";
q10answer = "c";
q10section = "3";
q10type = "3";
q10review = "";

q11 = "According to the theory of special relativity, the time between two events";
q11a = "is dependent on the wavelength of the light used to signal the event.";
q11b = "is always a constant, regardless of the observer's speed relative to the reference frame in which the event took place.";
q11c = "can be longer than expected if the observer is moving relative to the reference frame of the event.";
q11d = "is dependent on the frequency of the light emitted.";
q11answer = "c";
q11section = "3";
q11type = "1";
q11review = "";

q12 = "Special relativity describes";
q12a = "time as being relative to the observer.";
q12b = "mass and energy as equivalent.";
q12c = "the speed of light as an ultimate speed limit for all objects.";
q12d = "all of the above.";
q12answer = "d";
q12section = "3";
q12type = "1";
q12review = "";

q13 = "The energy of light is proportional to its";
q13a = "intensity.";
q13b = "frequency.";
q13c = "speed.";
q13d = "all of the above.";
q13answer = "b";
q13section = "4";
q13type = "1";
q13review = "";

q14 = "When an atom's energy decays from an excited state to a lower state,";
q14a = "it emits a photon of light.";
q14b = "its temperature increases.";
q14c = "it loses an electron.";
q14d = "it absorbs a photon of light.";
q14answer = "a";
q14section = "4";
q14type = "1";
q14review = "";

q15 = "From the absorption lines in the spectrum of a cloud, it is possible to determine";
q15a = "the cloud's temperature.";
q15b = "the type of atoms in the cloud.";
q15c = "the distance between us and the cloud.";
q15d = "the size of the cloud.";
q15answer = "b";
q15section = "4";
q15type = "1";
q15review = "";

q16 = "An object that is redshifted is";
q16a = "red in color.";
q16b = "moving away from us.";
q16c = "moving toward us.";
q16d = "is moving, but its direction cannot be determined.";
q16answer = "b";
q16section = "4";
q16type = "1";
q16review = "";

q17 = "An object whose absorption lines are of shorter wavelengths than they would be in a stationary<b> </b>laboratory is";
q17a = "moving toward us.";
q17b = "moving away from us.";
q17c = "moving, but neither toward nor away from us.";
q17d = "stationary relative to us.";
q17answer = "a";
q17section = "4";
q17type = "1";
q17review = "";

q18 = "Earth is";
q18a = "receiving heat from the Sun.";
q18b = "expelling heat into space.";
q18c = "both (a) and (b).";
q18d = "neither (a) nor (b).";
q18answer = "c";
q18section = "5";
q18type = "3";
q18review = "";

q19 = "The average energy involved in individual atoms randomly moving about is expressed in terms of";
q19a = "velocity.";
q19b = "force.";
q19c = "temperature.";
q19d = "heat.";
q19answer = "c";
q19section = "5";
q19type = "2";
q19review = "";

q20 = "An astronomical body giving off thermal radiation is more luminous than a second object. Both these objects are exactly the same in diameter. What can we conclude?";
q20a = "The first body has more intense absorption lines.";
q20b = "The first body has a blueshifted spectrum relative to the spectrum of the second.";
q20c = "The first body is at a higher temperature.";
q20d = "The first body is at a lower temperature.";
q20answer = "c";
q20section = "5";
q20type = "3";
q20review = "";

q21 = "We measure the temperature of the Sun by analyzing the";
q21a = "blueshift of the light from the Sun.";
q21b = "absorption spectrum of the Sun.";
q21c = "peak wavelength emitted by the Sun.";
q21d = "amount of light received by Earth.";
q21answer = "c";
q21section = "5";
q21type = "1";
q21review = "";

q22 = "A star that is noticeably more red in color than another is likely";
q22a = "at a higher temperature than the other.";
q22b = "at a lower temperature than the other.";
q22c = "to have a higher albedo.";
q22d = "to be moving toward us.";
q22answer = "b";
q22section = "5";
q22type = "3";
q22review = "";

q23 = "Distance between us and a star affects its";
q23a = "brightness.";
q23b = "luminosity.";
q23c = "temperature.";
q23d = "absorption spectrum.";
q23answer = "a";
q23section = "6";
q23type = "2";
q23review = "";

q24 = "The temperature of a planet depends on";
q24a = "its distance from the Sun.";
q24b = "the energy it radiates into space.";
q24c = "its albedo.";
q24d = "all of the above.";
q24answer = "d";
q24section = "7";
q24type = "1";
q24review = "";

q25 = "The fraction of sunlight reflected from a planet is";
q25a = "its albedo.";
q25b = "its temperature.";
q25c = "equal to the energy absorbed by the planet each second.";
q25d = "its redshift.";
q25answer = "a";
q25section = "7";
q25type = "2";
q25review = "";


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// END PASTE - End of paste for existing questions
// ////////////////////////////////////////////////////////////////////////////
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