Word Work File L_48265804

Word Work File L_48265804 - A tentative explanation for a...

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A tentative explanation for a natural phenomenon is known as a scientific A ) hypothesis. B ) law. C ) observation. D ) model. Measurements in science are communicated by using A ) a numerical value. B ) a unit. C ) either a numerical value or a unit. D ) both a numerical value and a unit. Because the standard unit of mass in the metric system was defined in terms of a certain volume of water, a relationship was created between A ) mass and volume alone. B ) mass and length alone. C ) volume and length alone. D ) length, mass, and volume. To communicate and duplicate measurements, scientists must use A ) metric units. B ) standard units. C ) English units. D ) fundamental units.
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Which of the following could be used by scientists to visualize or understand something that cannot be observed directly? A ) the theory of plate tectonics B ) Newton's laws of motion C ) a model of the solar system D ) Archimedes' Principle A scientist would say that Newton's "laws" of motion A ) control the motions of objects. B ) determine the motions of objects. C ) describe the motions of objects. D ) explain why objects change their state of motion. Pseudoscience refers to A ) measurements made using the English system rather than the metric system. B ) the use of selected pieces of scientific information to mislead or confuse. C ) experiments conducted by computer simulation. D ) data collected in the field without adequate laboratory controls. Which property listed below is not a fundamental property? A ) length B ) mass C ) weight D ) time
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Which of the following is an important feature of ratios? The use of ratios A ) helps scientists collect more data from their experiments. B ) helps scientists make comparisons. C ) enables scientists to formulate hypotheses. D ) lets scientists express all measurements as fundamental units. The kinetic energy of a moving object can be measured in terms of A ) how much work was done putting the object into motion. B )
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This note was uploaded on 06/24/2011 for the course COMP 100 taught by Professor Dfgdegg during the Spring '08 term at DeVry Chicago O'Hare.

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Word Work File L_48265804 - A tentative explanation for a...

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