Unit Conversion

Unit Conversion

Lesson 3

Components of the SI System

• The SI system of measurement has 3 parts:

• base units

• prefixes

• derived units

• Unit:  measure of the quantity that is defined to be exactly 1

• Prefix: modifier that allows us to express multiples of fractions of a base unit.

Multiple Choice

What would be the base unit of length?

• millimeter

• centimeter

• foot

• meter

Multiple Choice

Which would be the best unit to measure the length of a paper clip?

• meters

• kilometers

• inches

• centimeters

Multiple Choice

What would be the best unit of measure the mass of a tylenol pill?

• milligrams

• grams

• kilograms

• centigrams

Multiple Choice

What would be the best unit to use when measuring the volume of a swimming pool?

• Liters

• Milliliters

• Centiliters

• Kiloliters

​Sig Fig Rules are that the final answer should have the SAME number of sig figs as the original measurement you are trying to convert.

Fill in the Blanks

2.5 meters =

centimeters? (just write number)

Fill in the Blanks

5280 cm =

meters? (just write number)

Fill in the Blanks

0.12 kg =

centigrams? (just write number)

Fill in the Blanks

How many pounds is the current world record dead lift of 501.0kg? (1kg = 2.2lbs) (just answer the number)

Fill in the Blanks

Highest vertical leap ever recorded was 1.6129 meters!! How many inches is that if there are 2.54 cm in and inch? (just answer the number)

Fill in the Blanks

How many km/hr are in 25 m/s? (answer with number only)