Scientific Notation & Unit Conversion

What is the LAST step of dimensional analysis?

• CANCEL: Cancel the units and solve.

• IDENTIFY: Identify the unit that needs to be converted.

• FRACTIONS: Write the conversion factor(s) as fractions.

• LIST: List the conversion factor(s)

All metric units can be modified with a ______ to let us know that we are dealing with a much smaller or much larger unit.

• Suffix

• Magnitude

• Prefix

• Meter

Which of the following units are metric?

(Hint it will sound right if you say "kilo" or "milli" in front of the unit name)

• Quails, Chickens, Ducks, Turkeys

• Pounds, Feet, Fahrenheit, Gallons

• Grams, Meters, Celsius, Liters

• Slug, Smoot, Megafonzie, Barn-Megaparsec

In the metric system, each prefix (for example, kilo-, deci-, centi-, and milli-) are a power of what?

• 5

• 10

• 15

• 20

A conversion factor is a _____ ____ ____ _ _____ __ _, and we use it to change one unit into another.

• manufacturing cost of a product relative to the cost of the raw material.

• system of measurement

• way to count

• ratio that has a value of 1

What is dimensional analysis?

• A process to convert between any number of units.

• The study of the 4th dimension of space.

• A carnival ride.

• The conversion of physical quantities when adding.

Write the number 1,456 X 10^-10 in scientific notation.

• 14.56 X 10^-8

• 1.456 X 10^-7

• 1.456 X 10⁷

• 1.456 X 10^-8

A day is equivalent to 8.64 X 10⁴ seconds. When written in standard form, it is ___________.

• Eight and sixty-four hundredths times ten to the fourth power

• 864 X 10¹ seconds

• 86,400 seconds

• 864 seconds

Choose the metric prefixes that are listed in order from LARGEST to SMALLEST.

• centi-, deka-, milli-, kilo-

• kilo-, deka-, centi-, milli-

• deci-, deka-, kilo-, centi-

• milli-, centi-, deci-, kilo-, deka-

Scientific Notation looks like:

• a X 10ⁿ, where 1 ≤ a < 10

• a X 10, where a > n

• a X 10ⁿ, where a is any number