1-Past observations establish which aspect of the scientific method? A.Hypotheses B.Observations C.Theory D.Scientific law 2-A typical American quarter has a mass of approximately 5.7 grams. Which of the following represents an equivalent mass? A.0.0057 kilograms B. 57 000 milligrams C.0.0000057 micrograms D.none of the above E.5 700 centigrams 3-In the measurement 536.9784 inches which digit is estimated? A.5 B.6 C.9 D.4 E.None of the above all digits are certain. Reset Selection 4-Which of the following is an example of a mixture? A.sodium B.glucose C.diamond D.steel E.none of the above 5-Matter that has atoms close together but with an indefinite shape are best classified as _________. A.solid B.liquid C.homogeneous D.gas E.plasma 6-What is the value of 59 °C in °F? A.32.78 B.15 C.106.2 D.214 E.138.2 7-Which of the following terms is best defined as “the result of a force acting on a distance”? A.Matter B.Work C.Energy D.Potential energy E.Velocity 8-Matter that has large spaces between the atoms and an indefinite volume is best described as _________. A.gas B.homogeneous C.liquid D.plasma E.solid 9-The general public’s definition of “theory” does not match the scientific definition of “theory.” For example non-scientists often say “But it’s JUST a theory!” What is incorrect about this line of thinking? What is implied by this statement and how does it reflect an improper definition of the term? What word from the course material thus far may perhaps be a better choice for the general public to use here instead of the word “theory”? 10-t has been stated that numbers are “worthless” without an associated unit. Provide two reasons to support why you would agree or disagree with that statement.
