SI and Dimensional Analysis

SI Unit and Dimensional Analysis

By Erica Armstrong Baz

​The agreed upon system to use in science to keep measurements consistent.

​Change size of units by multiplying by 10's.

SI Units

The System of International Units​

Multiple Choice

What is the SI unit for length?

• meter

• mass

• liter

• second

Multiple Choice

What two units can be used when measuring volume

• grams and seconds

• cubic meters and liters

• milliliters and centimeters

• cubic centimeters and kelvin

Multiple Choice

What is the SI unit for mass?

• kilograms

• pounds

• meters

• liters

Multiple Choice

How many milliliters does this graduated cylinder have?

• 25

• 250

• 24

• 26

Multiple Choice

What is the temperature on this thermometer in Celsius?

• 47 ^oC

• 8 ^oC

• 20 ^oC

• 45 ^oC

• Used to change measurements to the correct unit.

• When converting si units by prefixes, factors of 10 are used.

• When changing between metric and you may use other known conversion factors

Ex: 1 dozen = 12 ; 1 kg = 1000 g

Dimensional Analysis​

Multiple Choice

60 Inches to Feet

(12 inches = 1 foot

• 720 feet

• 5 inches

• 5 feet

• 72 feet

Multiple Choice

1000 grams = _____kilograms

• 1

• 100

• 1000

• 10

Multiple Choice

How many inches are in 1 mile?

(5280 ft = 1 mile)

• 66330 in

• 63660 in

• 63360 in

• 63066 in