Questions and answers by

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Questions (344)

What is the primary way that the United States’ ideals spread through the world? (1 point) Responses Many people live in areas
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Use the equation and the table to answer the question. FeCl3 + 3H2O → Fe(OH)3 + 3HCl Element Mass of an Atom (amu) Fe 56 Cl 35
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A student combines two liquids in a beaker. She observes that the mass of the combined liquid is less than the mass of the two
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What is always true according to the Law of Conservation of Matter?(1 point) Responses The total number of molecules before and
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A large pavilion is made of 2.967×105 bricks. There are 6.9 bricks per square foot. How many square feet is the pavilion? Write
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solomon needs to distribute 10.5 gallons of perfume among 3.5×102 containers. How many gallons of perfume will be in each
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A city lunch program for seniors received a grant of 1.925×106 dollars. Divide that figure by the cost of $2.75 per lunch to
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rectangular park has an area of 1.36×108 ft2 . The length of the park is 1.6×104 ft. Divide the area by the length to find the
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When multiplying two numbers in scientific notation, what operations do you use on the coefficients and the exponents of the
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Use the chemical reaction to answer the question. 2H2+O2→2H2O There are four atoms of hydrogen (H ) before the reaction. How
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Use the chemical reaction to answer the question. NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2 A student mixes baking soda ( NaHCO3 ) and
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Use the chemical reaction to answer the question. 4Fe+3O2→2Fe2O3 What happens to atoms of Fe and O2 during the reaction?
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Which of the following properties is a chemical property?(1 point) Responses magnetism magnetism melting point melting point
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Strengthening the New Government Causes Event Effects Articles of Confederation limit the power of the national government.
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Which of the following items is a salt?(1 point) Responses antacid antacid sodium hydroxide sodium hydroxide carbonic acid
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What motivated most African American soldiers to fight in the Revolutionary War with the Patriots? (1 point) Responses the hope
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Use the excerpt to answer the question. In an effort to rally the nation in the midst of war, and attract popular support for
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Which of these characteristics of a star make it most likely to become a black hole? Select the two correct answers.(1 point)Res
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What is the main challenge astronomers face when trying to directly detect black holes?(1 point)Responses Black holes trap all
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Where could scientists look to observe a black hole?(1 point)Responses the edge of the solar system the edge of the solar system
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Which description best summarizes the steps that take place during black hole formation, in the correct order?(1 point)Responses
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Which statement best describes the galaxies closest to the Milky Way?(1 point)Responses These galaxies are independent of and
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Which statements describe elliptical galaxies? Select the two correct answers.(1 point)Responses They typically contain very
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How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point)Responses Some are more elongated in
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According to astronomers, how many galaxies are distributed across the observable universe?(1 point)Responses 50 50 1 trillion 1
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Which component that makes up the bulk of all galaxies?(1 point)Responses dust dust stars stars gas gas dark matter
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How can a planetary nebula be identified? Select the two correct answers.(1 point)Responses diffuse edges diffuse edges dark
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What does it mean to characterize a nebula as diffuse?(1 point)Responses It reflects only non-visible radiation. It reflects
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What causes a supernova?(1 point)Responses force of gravity force of gravity energy of a nebula energy of a nebula force of a
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How are nebulae and stars related? Select the three correct answers.(2 points)Responses Nebulae are found inside stars. Nebulae
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An asteroid approaches Jupiter and is slung around into a new trajectory across the solar system. Which of the following are
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Based on Kepler's observations about planetary motion, what is the relationship between a planet's orbital velocity and its
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For a moon orbiting its planet, rpis the shortest distance between the moon and its planet and ra is the longest distance
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The mass of an object doubles. What happens to the gravitational force between it and another object whose mass stays the same,
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Which of the following statements about Newton's theory of universal gravitation are true? Select the three correct answers.(2
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Which form of Kepler’s third law can you use to relate the period T and radius r of a planet in our solar system as long as
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Astronomy: Orbital Motion Unit Test4 of 154 of 15 Items Question A line between a planet and the sun sweeps out two equal areas
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Which statements about the geocentric model are false? Select the two correct answers.(1 point)Responses It shows Earth at the
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Which are features of Copernicus's model of the solar system? Select the three correct answers.(2 points)Responses The Sun is at
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Orbits of Satellites Quick Check1 of 31 of 3 Items Question Let G be the universal gravitational constant and mp be the mass of
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Orbits of Satellites Quick Check2 of 32 of 3 Items Question Let G be the universal gravitational constant and mp be the mass of
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Orbits of Satellites Quick Check3 of 33 of 3 Items Question Which factor is not needed when calculating the velocity of a
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As a planet draws away from the sun in its orbit, the force between the sun and the planetSelect Answer (increase or decrease or
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elect the correct answer from the list.(1 point)When an object slows down and deviates from its expected orbit, this indicates
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Which of these describe the speed of a moon as it draws closer to the planet it orbits?(1 point)Responses The speed of the moon
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Which area of astronomy does Kepler's laws address?(1 point)Responses The movement of planets within the solar system. The
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What does it mean when the orbital eccentricity of a planet is close to 1?(1 point)Responses its orbit is close to another
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Astronomers discover a new comet that follows a highly elliptical orbit. What is its eccentricity likely to be?(1 point)Response
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Select the correct answer to complete the sentence. Gravitational force is said to be universal because:(1 point)Responses it
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Drag each item to the correct location, so that each contribution to the theory of universal gravitation is matched with the
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Which statement about the development of Newton's theory of universal gravitation is correct?(1 point)Responses Johannes Kepler
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Which of the eight planets in the solar system has the most elliptical orbit?(1 point)Responses Mars Mars Earth Earth Mercury
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Why does the speed of a planet decrease as it moves away from the sun?(1 point)Responses The direction of the sun’s pull
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Geocentric Model Heliocentric Modelcircular or elliptical
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Geocentric Model Heliocentric Model5 planets or 8
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Why was the Copernican model a controversial proposition? Select the three correct answers.(2 points)Responses It contradicted
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Drag each item to indicate whether it is related to Aristotle's or Ptolemy's model of the solar system, or to both. Some items
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Which planet’s orbit was Kepler first studying when he began to develop his laws of orbital motion?(1 point)Responses Saturn
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Which orbital shape did most scientists in the early 1600s think the planets of our solar system have?(1 point)Responses
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Kepler's Second Law Quick Check3 of 33 of 3 Items Question According to Kepler’s second law of motion, which statement
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Kepler's Second Law Quick Check2 of 32 of 3 Items Question How did Kepler develop his second law of motion?(1 point) Responses
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Kepler's Second Law Quick Check1 of 31 of 3 Items Question Which does Kepler’s second law state about planetary motion?(1
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QuestionWhich is a correct statement about the development of Copernicus's model after his death?(1 point) Responses Copernicus
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Which of the following describe Aristotle's model of the solar system? Select the three correct answers.(2 points)Responses Each
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Why was the geocentric model accepted for more than a thousand years?(1 point)Responses It was confirmed by astronomers using
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What does it mean if a literary text has an aesthetic impact?(1 point)Responses The reader has an emotional reaction to the
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What is the meaning of aesthetic impact?(1 point)Responses a lesson or message in an artistic work a lesson or message in an
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What is the definition of flashback?(1 point)Responses the perspective from which a story is told the perspective from which a
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How are the events told in a story with a linear chronology?(1 point)Responses as a series of flashbacks of different characters
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Which answer choice correctly defines plot?(1 point)Responses the way a story is organized and presented the way a story is
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The Gift of the Magiby O'Henry One dollar and eighty-seven cents. That was all. And sixty cents of it was in pennies. Pennies
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The Diamond Necklaceby Guy de Maupassant When she sat down to dinner, before the round table covered with a tablecloth in use
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The Diamond Necklaceby Guy de Maupassant The night of the ball arrived. Madame Loisel was a great success. She was prettier than
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Select the correct answer(s) from the list(s).(1 point)Most pieces of literature have multiple (___) that interact and build
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An Occurrence at Owl Creek Bridgeby Ambrose Bierce He closed his eyes in order to fix his last thoughts upon his wife and
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Jeeves Takes Chargeby P. G. Wodehouse 'I mean it. You may look on it as a test, Bertie. If you have the resource and courage to
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Jeeves Takes Chargeby P. G. Wodehouse When I got to the house, Oakshott, the butler, told me that Florence was in her room,
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Use this excerpt from “Araby” by James Joyce to answer the question.I took my seat in a third-class carriage of a deserted
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Arabyby James Joyce The former tenant of our house, a priest, had died in the back drawing-room. Air, musty from having been
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What is the definition of tone?(1 point)Responses a specific approach to developing characters a specific approach to developing
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What are implicit details in a literary text?(1 point)Responses details that are explained by a reliable narrator details that
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Why would an author write a story with an unreliable narrator?(1 point)Responses to provide the reader with a clear moral to the
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Which answer choice accurately defines the meaning of the word inference?(1 point)Responses information that is directly stated
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Why should readers evaluate each piece of evidence when reading a literary text? Select the two correct answers.(1 point)Respons
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What does the word explicit mean?(1 point)Responses relevant relevant implied implied reliable reliable unambiguous
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In a concluding statement, when a writer refers back to keywords, metaphors, questions, or other ideas from the introduction,
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What does a concluding statement provide for the writer?(1 point)Responses an opportunity to restate the thesis in its entirety
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Which statements are true about the concluding section of a text?Select the two correct answers. (1 point) Responses It should
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Informational Text Conclusions Quick Check1 of 51 of 5 Items Question A student is writing a persuasive argument for why their
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What sentence requires revision to maintain a formal style?(1 point)Responses Born into a distinguished family, William Penn
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How can writers maintain a formal style and objective tone in their writing? Select the two correct answers.(1 point)Responses
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What sentence features the best example of precise language?(1 point)Responses Jeremiah grasped the end of the frayed rope, but
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"Why 'Shade Balls' May Not Save Water"by Amanda Grennell In 2015, the world watched as a video of 96 million “shade balls”
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Use the text to answer the question.Most Super Bowl victories of all time: New England Patriots (6) Pittsburgh Steelers (6) San
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Use the passage to answer the question.Advances in cellphones have accelerated in recent years. One example is text messaging,
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Connections and Transitions Quick Check4 of 54 of 5 Items Feature "Innovative Plastic Packaging May Help Waste Crisis" by EPA
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Use the passage to answer the question.Although they may appear similar, frogs and toads are two distinct creatures. Both
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Which statements show examples of distinctions? Select the two correct answers.(1 point)Responses Many people who live in cities
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When applying an understanding of syntax to complex texts, what should a reader pay attention to?(1 point)Responses analogies
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n order to really understand the extinction of the dodo, we need to look beyond the humans, to the suite of non-native species
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