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6 Written questions

5 Multiple choice questions

  1. the base unit of length in the metric system
  2. a number whose value has no uncertainty associated with it—that is, it is known exactly
  3. the ratio of the mass of an object to the volume occupied by that object
  4. the process of deleting unwanted (nonsignificant) digits from calculated numbers
  5. the base unit of mass in the metric system

5 True/False questions

  1. weighta measure of the force exerted on an object by gravitational forces


  2. dimensional analysisa general problem-solving method in which the units associated with numbers are used as a guide in setting up calculations


  3. conversion factora ratio that specifies how one unit of measurement is related to another unit of measurement


  4. scientific notationthe quantity of heat energy, in calories, necessary to raise the temperature of 1 gram of a substance by 1 degree Celsius


  5. significant fguresthe digits in a measurement that are known with certainty plus one digit that is estimated