The Metric System and Dimensional Analysis Questions

Unit 1: The Central Science

Metric Conversions & Derived Units

Intro: Use your notes to help answer the following:

 Why does the metric system use prefixes? What is dimensional analysis?

### 13) 34.5 g/L= ______ hg/dL

Measure each of the following using the given measurement tool for that measurement. Be sure to record the measurement to the correct number of significant figures. After making the initial measurement, convert to the rest of the units. Circle the best unit for each item

Part 1: Length Tool used for measurement: ___Ruler_____________________

Diameter of penny __________m. __________cm. _____2_____mm. __________km.

Height of lab counter ______1____m. __________cm. __________mm. __________km.

Width of binder __________m. ______12____cm. __________mm. __________km.

Length of the Room ____27______m. __________cm. __________mm. __________km.

Part 2: Mass Tool used for measurement: _________________________

Mass of penny ______2.5____g. __________dag. __________ hg. __________ dg.

Mass of paper _____4.5____g. __________dag. __________ hg. __________ dg.

Mass of 10 mL

Graduated cylinder _____9.878___g. __________ dag. __________ hg. __________ dg.

Mass of 10 mL

Graduated cylinder _____19.878_____g. __________ dag. __________ hg. __________ dg.

And 10 mL of water

Mass of 10 mL of __________g. __________ dag. __________ hg. __________ dg.

Water

Part 3: Volume of a liquid Tool used for measurement: ________________________

Purple liquid ____1000_mL. __________ L. __________kL

Green liquid ____350___ mL. __________L. __________ kL

Red liquid _____120__ mL. __________ L. __________ kL

Part 4: Density

Mass of block _____12_____ g.

Length of block ____5______ cm.

Width of block ____5______ cm. L x W x H to get volume: __________ mL

Height of block ____5______ cm.

Density of block __________ g/mL __________ mg/L __________ hg/cL

Follow up Questions: Use your notes to answer the following in complete sentences.

1. State the metric prefix that has a value of 1000.
2. Tell how many times larger a centigram is then a milligram.
3. Identify which metric prefix has a value of 1/100.
4. Explain why measuring the width of a penny using the meter as the measurement scale is not a good idea.