Conversions:

  1. If 1 in equals 2.54 cm, how many miles are in one kilometer?

 

 

  1. The density of water is 1 g/cm3.  What is this value in kilograms per cubic meter?

 

 

  1. The piston displacement of a certain automobile engine is give as 2.5 l.  Using only the facts that 1 L = 1000 cm3 and 1 in = 2.54 cm, express the volume in cubic inches.

 

 

  1. If one Deutschmark is worth 55 cents and gasoline costs 1.30 Deutschmarks per liter, what is the cost in dollars per gallon?

 

 

  1. Compute the number of seconds in a day, in a year.

 

 

  1. The Concorde is the fastest airliner used for commercial service; it can cruise at 1450 mph:
    1. What is the cruise speed of the Concorde in mi /s/

 

 

    1. What is the cruise speed of the Concorde in m/s?

 

 

  1. The gasoline consumption of a small car is 15 km/L.  How many miles per gallon is this?

 

 

  1. The speed limit on a highway in Lower Slobbovia was given as 120,000 furlongs per fortnight.  How many miles per hour is this?  (One furlong is 1/8 mile, and a fortnight is 14 days.)

 

  1. A gold atom has a diameter of 0.288 nm.  How many miles long would a single row of 6.02 x 1023 gold atoms be?

 

  1. When the Pharmacopoeia of London was compiled in 1618, the troy system of measure was used to prepare medicine.  Among the units used were:  20 grains = 1 scruple;  3 scruples = 1 drachm;  8 drachms = 1 ounce;  12 ounces = 1 pound.
    1. 6.00 pounds = _____ drachms
    2. 12.0 drachms = _____  pounds;  =  _____  ounces

 

  1. Bill Rodgers won the 1979 Boston Marathon (26.2 mi) in 2 h, 9 min, 27 s.  What was Rodgers’ speed in kilometers per hour?