Measurements, Calculations and Conversions

                  II. How many significant figures?

a)    0.003250 ________________

b)   2001.5 ___________________

c)    001.0 _____________________

d)   6.022 X 10²³ _____________

e)    2 __________________________

f)     2.0 ________________________


III. Perform the following calculation and round to the correct number of 
significant digits:

a) (22.23 + 14.2) / (17.6 - 8.311)


b) (9.4 X 10²² + 18.44 X 10²¹) x 44.4 x 10^-18

IV. Decimal to scientific notation and scientific to decimal notation

a)    2,853,450,000 =

b)   0.000000052 =

c)    2,853,450,001=

d)   3.557 X 10²⁼

e)    2.438 X 10^-5=

          V. Which of the following is correct

                  a) 1kg = 1000 g
                  b) 1kg = 1x10³ g
                  c) Both a and b are correct 

  VI. Convert 3.5 feet to inches. 1 ft = 12 in

  VII. The area of a golf course is measured to be 3.5 square miles. Calculate the                  area of the golf course in square meters using the following conversion factors: 
                  (1 mi = 5280 ft; 1 ft = 12 in; 1 in = 2.54 cm; 1 m = 100 cm).

        VIII. Convert the following

         a)    47.8 L = ______ mL

         b)   16 L = _____ mL

         c)    32789 mL = _________ L

         d)   5000 mL = _________ L

     IX. Calculate BMI for

    a) 70 kg; 1.80 m
    b) 75 kg; 6.2 ft
    c) 180 lb; 160 cm
    d) 130 lb; 5.9 ft
    e) 100 kg; 5.3 ft

Answers