1 / 14

# Overview of Metric System - PowerPoint PPT Presentation

Overview of Metric System. System of measure used by scientists around the world Uses prefixes and suffixes Suffixes Meter – tells us we are measuring distance, L,W,H Liter – tells us we are measuring liquid volume Gram – tells us we are measuring mass Prefixes Kilo = 1000 Hecto = 100

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about ' Overview of Metric System' - derek-levine

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

• System of measure used by scientists around the world

• Uses prefixes and suffixes

• Suffixes

• Meter – tells us we are measuring distance, L,W,H

• Liter – tells us we are measuring liquid volume

• Gram – tells us we are measuring mass

Prefixes

Kilo = 1000

Hecto = 100

Deka = 10

Deci = 1/10

Centi = 1/ 100

Milli = 1 / 1000

• Measures length, width, and height

• Distance is measured in centimeters (cm) and millimeters

(mm)

• Meter sticks and rulers are tools used for measuring distance

• 10 mm equal 1 cm. This allows to quickly change from mm to cm and back.

• To move from mm to cm, move decimal one place left.

• Example – 10.0 mm = 1.0 cm

• To move from cm to mm, move decimal one place right

• Example – 1.0 cm = 10.0 mm

• Volume measures how much space something occupies

• There are three types of volume:

• Volume of a liquid – (ml)

• Volume of solids – (cm cubed)

• Volume of a straight sided solids

• Volume of an irregularly shaped solids

• Measures how much space a liquid occupies

• Liquid volume is measured in milliliters (ml)

• Graduated cylinders and beakers are tools used to measure liquid volume

• Graduated cylinders are graduated or marked so that we can measure liquid volume

• The top of a liquid in a graduated cylinder will bend slightly. This is called a Meniscus Line. Always read a meniscus line from its lowest point

• Measures how much space a straight sided object takes up

• Equation to find volume:

• Length x Width x Height

• Volume of solid object is always cubed

• Volume of the cube below equals: 5 x 5 x 5 = 125 cm cubed

• Displacement Volume

• Found by submerging the object in water.

• The amount of water that is moved, or displaced, tells us the volume of the object

• A graduated cylinder or beaker is required

• Equation is:

• Final Water Level - Initial Water Level = Volume of object in ml

• Convert ml to cm cubed: 1 ml = 1 cm cubed

• Measures how much something weighs

• Mass is measured in grams

• Electronic scales are a tool used to measure mass

• Defined as the amount of mass in a given volume.

• Equation to find density is mass / volume.

• P = S + S + S + S

• (add all sides of object)

• P = 5 + 5 + 5 + 5 = 20 cm

• A = S x S

• (always squared)

• A = 5 x 5 = 25 cm squared

• V = Length X Width X Height

• (volume is always cubed for solids)

• V = 5 x 5 x 5 = 125 cm cubed

Prefixes can be used with all three measuring base words: meter (distance), liter (liquid volume), gram (mass). Base words are found in the middle of the metric ladder.

Example: kilometer, hectoliter, centigram

As you move left numbers get larger, as you move right numbers get smaller

• Count the number of spaces to move from your starting point to your end point

• Decide if you moved right or left on the ladder

• Move the decimal the same number of spaces that you moved and in the direction that you moved

• Example to convert from millimeter to decimeter you would move the decimal point two places to the left

• 100 mm equals 1.00 dm

• Measures how hot or cold something is

• Temperature is measured in degrees Celsius or degrees Fahrenheit

• Thermometers are a tool used to measure temperature

• Celsius Scale

• 0 is freezing and 100 is boiling

• Fahrenheit Scale

• 32 is freezing and 212 is boiling

• Celsius to Fahrenheit

• F = (C x 1.8) + 32

• Fahrenheit to Celsius

• C = ( F - 32 ) / 1.8