Units of Measurement

• How many grams in 1 megagram (Mg)?

a) 10^6 g

b) 10^-6 g

c) 10^9 g

d) 0.001 g

• How many mg in 1g ?

a) 10^3 mg

b) 10^-6 mg

c) 10^6 mg

d) 0.001 mg

• How many meters in 1 nanometer (nm) ?

a) 10^6 m

b) 10^-9 m

c) 10^9 m

d) 0.001 m

• How many nm in 1m ?

a) 10^6 nm

b) 10^-9 nm

c) 10^-9 nm

d) 0.001 nm

• Convert from 0.03 megasecond (Ms)tofemtosecond(fs). 

a) 3*10^6 fs

b) 3*10^-15 fs

c) 3*10^19 fs

d) 0.003 fs

• Convert from 1500 yard to meter knowing that 1meter=1.09361 yard

             a)  1371.6 m

             b) 1640.4 m

             c) 1731.2 m

             d) 1936.1 m

• A golfer putted a golf ball 6.8 ft across a green. How many inches does this represent?

(1ft=12in)

             a) 81.6 in

             b) 1.76 in

             c) 0.567 in

             d) 8.61 in

• An iron sample has a mass of 4.50 lb. What is the mass of this sample in grams?

(1kg=2.2046 lbs)

             a) 2041.2 g

             b) 9.9 g

             c) 4500 g

             d) 2.045 g

• It is estimated that 5g of Uranium are exist per 1000kg of earth crust. At this concentration, what mass of Uranium is present in 1.5mg of the earth crust?

7. 5 Tg (teragram)
8. 5 μg(microgram)
9. 5ng(nanogram).