Classic Classic Quiz Science Test Ch2-2 by Fgbly Fgbly 179 played - 12 yrs ago Cory's Science Test, Ch 2 Section 2 QUIZ 20 QUESTIONS hard 1 What is a representation of an object or process called? TheoryLawModelVariable 2 Why is studying a model helpful to scientists? Scientists can study something in greater detail.Variables can never be changed.The subjects of the study are harmed.Studying models is never helpful. 3 Which of the following could NOT be represented by a model? AtomEarthSI unitMathematical equation 4 What are physical models? Models you cannot seeModels you can touchModels you cannot understandModels you cannot touch 5 Why is a globe a better physical model of Earth than a map is? The globe is less accurate.The map is more accurate.The globe is more accurate.The globe is flat. 6 What are the mathematical models made up of? Mathematical equations and dataThings you can touchObjects that are realThings you cannot describe 7 Which of the following are needed to process complex mathematical models? MetersticksGraduated cylindersThermometersComputers 8 How much data can a supercomputer process? Fewer than 100 calculations every second300 trillion calculations every secondOnly 40 calculations every second30 trillion calculations every second 9 Why are computers helpful in building models? Computers can perform calculations instantly.Computers process data very slowly.Models do not contain data.Models can perform calculations instantly. 10 Which of the following statements about models in NOT true? Climate models use information about temperature.Models track variables that affect climate.Models make exact predictions about future climates.Computers run models that track climate. 11 What do events in nature often follow? Mathematical formulasPredictable patternsUnpredictable patternsScientific models 12 What is the basis of science? Designing experimentsObserving patterns in natureUsing computersMaking mathematical models 13 A statement or equation that reliably predicts events under certain conditions is called a ____________. LawTheoryExperimentPattern 14 A system of ideas that explains observations and is supported by scientific evidence is called a ____________. LawTheoryExperimentPattern 15 Which of the following statements about the theory of an Earth-centered universe is true? The theory was never questioned.Observations led to a new theory.The theory has been forgotten.Observations proved the theory true. 16 Which discovered the law of universal gravitation? Stephen HawkingCopernicusBenjamin FranklinSir Isaac Newton 17 Which of the following laws supports the theory of a sun-centered solar system? The law of modelsThe universal lawThe law of universal gravitationThe law of physics 18 Why are models limited? Models are not simplified.Models leave out information.Models cannot be understood.Models are never used in science. 19 Which of the following statements about models is true? Models are not used in science.Models change because of new data.Models can never change.Models cannot be understood by scientists. 20 Which of the following might challenge an existing model? New technologyOld technologyAn incorrect lawAn incorrect theory A mistake in this Quiz ? Contact the author Commentaires
