Density Unit Flashcards

What is the purpose of a metric unit conversion?

The purpose of a metric unit conversion is to help you substitute your measurement in simpler terms by converting your measurement to a different unit.

What are the basic units of measurement?

Meters measures distance

Liters measures volume

Grams measures mass

Prefix Measurement Acronym for the Test

King (3L) (kilo)

Uma (0) (base measure)

Can (2R) (centi)

Make (3R) (mili)

Noodles (9R) (nano)

1 STEP =

1 decimal movement

Volume

• The amount of space an object takes up

• Volume is NOT area( or mass)

• Volume = 3D Area = 2D

• There are 3 ways to measure Volume!

Regular(geometric) Shaped Solids

• Use a mathematical formula Ex. LxWxH

Liquids

• Put the liquid in á graduated cylinder or beaker

• Measure from the bottom of the bend

• Labeled in mL or L

Irregular Shaped Solids

Use water displacement

• place H20 in a beaker and record the volume

• place object in beaker and record new volume

• find the difference between the 2 volumes to get the volume of the object

***THE CONVERSION***

1mL=1cm cubed

Mass

• the amount of matter in an object

• measured using a triple beam balance

• measure in gram(s) or kilograms(kg)

Gravity

• a force of attraction between any 2 objects with mass

• depends on mass and distance

• distance is more important than mass

Gravity Formula

Fg = G m1m2/ r squared

Weight

gravitational pull on an objects mass

Mass vs. Weight

Mass

• amount of stuff/matter

• measured in g or kg

• doesn’t change based upon where you are

• same everywhere in space

Weight

• force of gravity on an objects mass

• measured in kg or g

• does change based upon where you are

• different on moon, earth, jupiter