Week 1 Practice Quiz

Week 1 Practice Quiz - measurements made using the English...

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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 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 Which property listed below is not a fundamental property? A ) length B ) mass C ) weight D ) time 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 To communicate and duplicate measurements, scientists must use A ) metric units B ) standard units C ) English units D ) fundamental units Pseudoscience refers to A )
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Unformatted text preview: 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 What is the density of a 61.8 g cube that is 2.3 cm wide, 4.0 cm tall, and 3.2 cm long? A ) 6.5 g/cm3 B ) 2.1 g/cm3 C ) 48g/cm3 D ) none of the above 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 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...
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Week 1 Practice Quiz - measurements made using the English...

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