1) This is called a "Measurement" a) Quantitative Observation b) Qualitative Observation c) Ruler 2) What is the SI unit for Temperature? a) Celcius b) Fahrenkeit c) Kelvin d) Thermometer 3) What is the exponential notation for the prefix mega? a) 107 b) 10 5 c) 10 6 d) 10 4 4) How many significant figure/s are there in 0.0050 a) 5 b) 3 c) 1 d) 2 5) How many sigificant figure/s are there in 1000 a) 2 b) 4 c) 1 d) 1000 6) How do you write 0.00567 in exponential notation? a) 56.7 x 10 4 b) 5.67 x 10 -3 c) 6.57 x 10 -3 d) 5.67 x 10 3 e) 567 x 10 1 f) 5.67 x 10 -4 7) what is the total mass of the object? a) 540.20 g b) 540.52 g c) 545.20 g d) 545.52 g 8) How many calories are equivalent to 35 kilocalories? a) 35 cal b) 0.035 cal c) 35,000 cal d) 3500 cal 9) An aluminum sample has a mass of 80.01 g and a density of 2.70 g/cm³. According to the data, to what number of significant figures should the calculated volume of the aluminum sample be expressed? a) 1 b) 2 c) 3 d) 4 10) A sample of an element has a mass of 34.261 grams and a volume of 3.8 cubic centimeters. To which number of significant figures should the calculated density of the sample be expressed? a) 5 b) 2 c) 3 d) 4 11) The measurement 0.41006 gram, rounded to three significant figures, is expressed as a) 0.41 g b) 0.410 g c) 0.4100 g d) 0.4101 g 12) Which measurement contains a total of three significant figures? a) 0.12 b) 012 c) 120 d) 120. 13) What is the value of n if the number 0.0000082 is written in the form 8.2 x 10n? a) −6 b) 5 c) −5 d) 6 14) Expressed in scientific notation, the number 4,600,000,000 is a) 4.6 x 10-8 b) 4.6 x 10-9 c) 4.6 x 109 d) 0.46 x 1010 15) The population of New York State was approximately 18,900,000. How is this number expressed in scientific notation? a) 1890 x 104 b) 1.89 x 107 c) 18.9 x 106 d) 189 x 105

Scientific Notation and Significant Figures

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