Measurement Systems Quiz

Metric System

• Mass: g or gram
• Length: m or meter
• Volume: L or liter
• 1 cubic centimeter (cc) of water is roughly equal to 1 milliliter (mL) and weighs 1 gram.

Apothecary System

• Volume (fluids):
  • 60 minims (mm) = 1 fluidrachm/fluidram (f 3)
  • 8 fluidrachms = 1 fluid ounce (f 3)
  • 16 fluid ounces = 1 pint (pt)
  • 2 pints = 1 quart (qt)
  • 4 quarts = 1 gallon (gal)
• Mass (weight):
  • 20 grains (gr) = 1 scruple (3)
  • 3 scruples = 1 drachm/dram (3)
  • 8 drachms = 1 ounce (3)
  • 12 ounces = 1 pound (lb)

Avoirdupois System

• Volume:
  • 1 fluidrachm = 60 minims
  • 1 fluid ounce = 8 fluid drams = 480 minims
  • 1 pint = 16 fluid ounces = 7680 minims
  • 1 quart = 2 pints = 32 fluid ounces = 15360 minims
  • 1 gallon = 4 quarts = 128 fluid ounces = 7680 fluid drams
• Mass (weight):
  • The grain is common to both the apothecary and avoirdupois systems
  • 437.5 grains = 1 ounce
  • 16 ounces = 1 pound

Exact Equivalents

• Length:
  • 1 meter = 39.37 inches
  • 1 inch = 2.54 centimeters
• Volume:
  • 1 milliliter = 16.23 minims
  • 1 minim = 0.06 milliliters
  • 1 fluid dram = 3.69 milliliters
  • 1 fluid dram = 29.57 milliliters
  • 1 pint = 473 milliliters
  • 1 US gallon = 3785 milliliters
• Mass:
  • 1 gram = 15.432 grains
  • 1 kilogram = 2.20 pounds (avoirdupois)
  • 1 grain = 0.065 grams or 65 milligrams
  • 1 ounce (avoirdupois) = 28.35 grams
  • 1 dram (apothecary) = 31.1 grams
  • 1 pound (avoirdupois) = 454 grams
  • 1 pound (apothecary) = 373.2 grams

Other Equivalents

• 1 ounce (avoirdupois) = 437.5 grains
• 1 dram (apothecary) = 480 grains
• 1 US gallon = 128 fluid drams
• 1 fluid dram (of water) = 455 grains
• 1 grain (apothecary) = 1 grain (avoirdupois)

Approximate Equivalents

• 1 fluid dram = 1 teaspoonful = 5 mL
• 4 fluid ounces = 120 mL
• 8 fluid ounces = 1 cup = 240 mL
• 1 grain = 65 mg
• 1 kilogram ≈ 2.2 pounds (lb)

Test your knowledge on the Metric, Apothecary, and Avoirdupois systems of measurement. This quiz covers mass, length, and volume conversions among these systems, along with their specific units. Perfect for students learning about unit measurements in science and mathematics.