Metrics and Dimensional Analysis

Metric System

Metric System All units are multiples of ten Consist of base unit and prefix

All units are multiples of ten

Consist of base unit and prefix

SI units Internationally agreed upon units All scientists use these to measure

Internationally agreed upon units

All scientists use these to measure

Dimensional Analysis

Dimensional Analysis Simple unit conversions; the idea of dimensional analysis Convert 2 feet to inches We need a conversion factor, a relationship between the units

Simple unit conversions; the idea of dimensional analysis

Convert 2 feet to inches

We need a conversion factor, a relationship between the units

Dimensional Analysis These both give us a relationship between in. and ft. We use D.A. to cancel units

These both give us a relationship between in. and ft.

We use D.A. to cancel units

Dimensional Analysis The units cancel out leaving only Giving us an answer of 24 in.

The units cancel out leaving only

Giving us an answer of 24 in.

Dimensional Analysis Convert 48 inches to feet.

Convert 48 inches to feet.

Dimensional Analysis Convert 5 days to hours.

Convert 5 days to hours.

Dimensional Analysis How many seconds are there in 4 minutes?

How many seconds are there in 4 minutes?

Dimensional Analysis Convert 27.2 cm to meters.

Convert 27.2 cm to meters.

Dimensional Analysis Sometimes our conversion requires more than 1 step. Convert 1 Ms to hr.

Sometimes our conversion requires more than 1 step.

Convert 1 Ms to hr.

Dimensional Analysis Convert 147 cm/s to m/s

Convert 147 cm/s to m/s

Dimensional Analysis Convert 60 miles/hour to feet/second

Convert 60 miles/hour to feet/second