 Practice Problems Fundamental Math

Directions: On this worksheet you will practice some fundamental math and data analysis skills. Question 1  The metric prefix mega represents 1000000 times a quantity0.001 times a quantity1000 times a quantity0.000001 times a quantity Question 2  Red light has an average wavelength of 672 nm. How many mm does this represent? 6.72 x 10-4 mm6.72 x 10-3 mm6.72 x 10-5 mm6.72 x 10-10 mm Question 3  0.0052 meters when expressed in scientific notation would be 5.2 x 102 meters5.2 x 10-2 meters5.2 x 103 meters5.2 x 10-3 meters Question 4  Which statement is TRUE? 1 cm = 100 mm1 cm = 10000 µm1 cm = 10 dm1 cm = 0.10 m Question 5  Which of the following numbers has exactly 3 significant figures? 0.00022020780080.50 Question 6  What is the difference between these two measurements: 22.78 cm and 72.6 cm? 49.82 cm49.8 cm49.7 cm49.9 cm Question 7  What is the correct reading for the triple beam balance shown below? 243.4 g243.25 g240.34 g243.5 g Question 8  What is the correct volume reading for the water level in the cylinder shown below? 55.5 mL55.27 mL57.7 mL57.75 mL Question 9  What is the median of the following data set?3.31 g3.21 g3.38 g3.54 g4.16 g3.31 g3.62 g 3.54 g3.31 g3.50 g3.38 gnot listed Question 10  The standard deviation that was calculated for this data set equaled 0.29 grams. Which value in the group shown above falls in an interval beyond 1 standard deviation but less than 2 standard deviations of the mean? 3.21 g3.38 g4.16 g3.54 g4.16 g3.62 g Question 11  Calculate the numerical value of the slope of the following line and then choose the best value from the list below. 0.06670.751.331513.3 Question 12  If this graph was retitled 'Mass vs Volume', determine the equation for the regression line displayed on this graph and extrapolate the value for the mass which corresponds to a volume of 0.77 cm3. 11.6 grams9.1 grams14.1 grams22 grams