Multiple Choice
Multiple Choice
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 1 The first requirement in the measurement process is to A) count how many standard units describe the property being considered. B) choose an instrument to measure the property. C) choose a referent unit with which to measure the property. D) select a procedure which specifies how the measurement is to be made. 2 To communicate and duplicate measurements, scientists must use A) metric units. B) standard units. C) English units. D) fundamental units. 3 Which property listed below is not a fundamental property? A) length B) mass C) weight D) time 4 A fundamental property cannot be measured A) in terms other than metric units. B) in terms other than English units. C) in simpler terms or combinations of terms. D) with both accuracy and precision. 5 Which of the following is not a fundamental property? A) density B) electric charge C) time D) mass 6 Which statement below is a true description of the relationship between fundamental and standard units? A) Fundamental units are equivalent to standard units. B) Only some standard units are also fundamental units. C) Only some fundamental units are also standard units. D) "Fundamental" describes metric units while "standard" only describes units in the English system. 7 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. 8 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. 9 Which of the following is an important feature of ratios? A) The use of ratios 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. 10 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) 0.48 g/cm3 D) none of the above 11 Which statement below describes a relationship between mass or volume and density? A) A greater volume of a pure sample will have a greater density. B) A greater mass of a pure sample will have a greater density. C) A smaller volume of a pure sample will have a lesser density. D) Any volume of a pure sample will have the same density. 12 Scientists engaged in scientific investigations generally A) follow the same series of five specific steps. B) agree on the definition of "the scientific method." C) collect observations, develop explanations, and test explanations. D) develop theoretical equations to describe their observations. 13 A controlled experiment compares two situations that A) have all variables identical except for the one under investigation. B) have all variables the same. C) have no variables. D) use only a control group. 14 If an experiment gives the same results repeatedly, scientists describe the results as A) reliable. B) valid. C) controlled. D) experimental. 15 The results of a single experiment are not likely to be accepted because A) the scientific method requires repeated testing. B) a random event might have affected the results. C) scientists cannot control all the variables in one experiment. D) measurements cannot be made reliably. 16 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 they change their state of motion. 17 A tentative explanation for a natural phenomenon is known as a scientific A) hypothesis. B) law. C) observation. D) model. 18 A broad working hypothesis based on extensive experimental evidence that forms the framework of scientific thought is termed a scientific A) law. B) model. C) ide D) theory. 19 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 20 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. 21 Which question below could potentially be answered by science? A) Which flower has the prettiest color? B) Which flower is the best for attracting bees? C) Which is the most valuable flower? D) Should it be illegal to pick wildflowers? 22 Which of the following is NOT a physical property that a scientist might use to describe gold? A) yellowish color B) shiny metallic luster C) dense D) valuable 23 English units of measurement A) are based on invariable referents in nature. B) cannot be used to measure fundamental properties. C) were established in 1791 by the Royal Academy of Science in London. D) are defined in terms of the metric system by the "Treaty of the Meter." 24 The metric system uses prefixes to represent larger or smaller amounts based on the number A) 0.1 B) 10 C) 100 D) 1000 25 Which of the following is not a standard unit? A) kilogram B) second C) newton D) meter