1.3 Measures and Accuracy

• Order the length units from largest to smallest:

  1️⃣ Kilometer

  2️⃣ Meter

  3️⃣ Centimeter

  4️⃣ Millimeter
• Match the unit with its equivalent:

  1 kilogram ↔️ 1000 grams

  1 liter ↔️ 1000 milliliters

  1 meter ↔️ 100 centimeters

  1 gram ↔️ 1000 milligrams
• The Imperial system is primarily used in the United States.


  True
• To convert feet to meters, use the conversion factor 1 foot = 0.3048 meters.
• How many significant figures are in the number 2345?

  4
• Trailing zeros after the decimal point are significant.


  True
• When are trailing zeros in whole numbers significant?

  If there is a decimal
• How many meters are in a kilometer?

  1000
• How many meters are in a kilometer?

  1000
• How many grams are in a kilogram?

  1000
• Where is the Imperial system primarily used today?

  United States
• One foot is equal to 0.3048 meters.
• One ounce is equal to 28.35 grams.
• How many milliliters are in a fluid ounce?

  29.57 mL
• One ounce is equal to 28.35 grams
• One gallon is equal to 3.785 liters
• Leading zeros are not significant
• If the digit to the right is 5 or greater, you round up
• One kilometer is equal to 1000 meters
• To convert 5 feet to meters, use the conversion factor: 1 foot = 0.3048 meters
• Significant figures include all certain digits plus one estimated digit.


  True
• How many significant figures are in the number 3.500?

  4
• Steps for rounding to a specified number of significant figures:

  1️⃣ Identify the relevant digits

  2️⃣ Examine the digit to the right

  3️⃣ Round up if the digit to the right is 5 or greater, otherwise round down
• What is the rounded value of 123.45 to 3 significant figures?

  123
• How many meters are in a kilometer?

  1000
• What type of system is the metric system based on?

  Decimal
• How many grams are in a kilogram?

  1000
• The metric system is a decimal
• Match the metric unit with its value:

  Kilometer ↔️ 1000 meters

  Centimeter ↔️ 0.01 meter

  Milligram ↔️ 0.001 gram

  Milliliter ↔️ 0.001 liter
• One kilometer is equal to 1000 meters.
• Always include units in calculations to ensure accuracy.


  True
• How many centimeters are in an inch?

  2.54
• How many kilometers are in a mile?

  1.609
• How many milliliters are in a fluid ounce?

  29.57
• How many centimeters are in an inch?

  2.54 cm
• How many milliliters are in a pint?

  473.18 mL
• How many significant figures are in the number 2345?

  4
• How many significant figures are in the number 123.4?

  4
• Match the metric unit with its conversion:

  1 kilometer ↔️ 1000 meters

  1 meter ↔️ 100 centimeters

  1 liter ↔️ 1000 milliliters
• Including units in calculations ensures clarity.


  True