Chemistry11 - PowerPoint Presentation

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Chemistry11 - PPT Presentation

TODAY The Imperial vs Metric System 14 Analysis of Units and Conversions in Chemistry Pages 45 58 There are two types of measurements we use Pages 10 20 The units on the following pictures are the ID: 613548

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Slide1

Chemistry11

TODAY:

The Imperial vs. Metric SystemSlide2

1.4 Analysis of Units and Conversions in Chemistry

Pages: 45 - 58Slide3

There are two types of measurements

we use

Pages: 10 - 20Slide4

The units on the following pictures are the

IMPERIAL

units

What unit of measurement is this?

GallonSlide7

What unit of measurement is this?Slide8

Gallon

Mph (Miles per hour)Slide9

What unit of measurement is this?Slide10

Gallon

Mph (Miles per hour)

PoundsSlide11

What unit of measurement is this?Slide12

Gallon

Mph (Miles per hour)

Pounds

InchesSlide13

What unit of measurement is this?Slide14

Gallon

Mph (Miles per hour)

Pounds

Inches

YardsSlide15

What unit of measurement is this?Slide16

Gallon

Mph (Miles per hour)

Pounds

Inches

Yards

FahrenheitSlide17

More than likely, we said the following things

Gallon of milk.

65 miles per hourQuarter Pounder

48 inchesTemperature in Fahrenheit

The countries colored in red are the ones that use the Imperial System

The United States

Burma

Liberia

Canada (sometimes)Slide19

The Imperial System Example

LENGTHSlide20

The IMPERIAL system is based on the following.

An inch

represents the width of a thumbSlide21

Yard

the distance from the tip of the nose to the end of the middle finger of the outstretched handSlide22

Foot (12 inches)

originally the length of a human foot, although it has evolved to be longer than most peoples feet.

Mile

A Roman unit, originally defined to be the length of 2000 steps of a Roman legion.Slide24

The Metric System and SI UNITS

Gallon

Mph (Miles per hour)

Pounds

Inches

Yards

Fahrenheit

I will show you these 6 pictures showing you their metric values.Slide26

One gallon of milk =

3.78 liters of milk

Slide27

65 mph =

104 km/h

Double Quarter Pounder(0.5 pound) =

0.226 kgSlide29

48 inches tall =

1.22 meters tall

1 Yards =

0.914 meters

80 degrees Fahrenheit =

26.7 degrees Celsius

The International System

(

System Internationale ‘unites

) of Units (SI) also known as THE METRIC SYSTEM

.Slide33

It is used by scientists all over the worldSlide34

One inch

is usually divided into

10 or 16 parts:

DIFFICULTY OF THE IMPERIAL UNITS

This particular ruler has

16 divisionsSlide35

One inch

is usually divided into

10 or 16 parts:

DIFFICULTY OF THE IMPERIAL UNITS

So, the smallest division =

1/16

of an inchSlide36

One inch

is usually divided into

10 or 16 parts:

What is the length of the pencil?

So, the smallest division =

1/16

of an inchSlide37

One inch

is usually divided into

10 or 16 parts:

What is the length of the pencil?Slide38

The simplicity of the Metric System?

For example:

LENGTH:

meter

MASS:

gram

VOLUME:

liter

Only

one unit

of measurement for

each quantity

Slide39

You can measure the

very small

and the very large with the same unit

meterSlide40

The measurements below are all the same.

“I am 1828.80

tall.”

“I am 182.80

tall.”

“I am 1.8280

meters

tall.”

“I am .001828

tall.”

Compare it with

Imperial SystemSlide41

The simplicity of the Metric System?

For example:

LENGTH:

meter

MASS:

gram

VOLUME:

liter

Only

one unit

of measurement for

each quantity

For example:

LENGTH

mile,

yard

foot/feet

inch

…

MASS

grain

(

≈0.65g),

drachm

(1.77 g),

pound

(453 g)…

VOLUME

ounce

(0.028 L),

gill

(0.142 L),

gallon

(4.55 L)…

ImperialSlide42

Must know!

Slide43

MASSSlide44

The amount of matter in an object.

THE BASE UNIT

kilogram

SYMBOL

kgSlide46

TEMPERATURESlide47

The degree of hotness or coldness of an object

THE BASE UNIT

kelvinSYMBOL = K

TIMESlide50

Time is

not the same everywhere

. Time speeds up and slows down. The faster you are going, the slower time travels.Slide51

THE BASE UNIT

secondSYMBOL =

sSlide52

Amount of SubstanceSlide53

The mole:

The molecular weight of a substance expressed in grams

THE BASE UNIT

mole

SYMBOL =

molSlide55

Electric CurrentSlide56

THE BASE UNIT

ampere

SYMBOL

ASlide57

Luminous IntensitySlide58

THE BASE UNIT

candela

SYMBOL

cdSlide59

CONVERTING

TEMPERATURE

The

size of the temperature unit

(the degree) is the same for

KELVIN

and

CELSIUS

scales but different for

FEHRENHEIT Slide60

However,

KELVIN

CELSIUS

and

FEHRENHEIT

scales have

different zero points

CONVERTING

TEMPERATURESlide61

KELVIN vs. CELSIUSSlide62

CELSIUS vs. FahrenheitSlide63

Zero Degrees Celsius is a

freezing point of water

, 100 degrees Celsius is a boiling point of water

Molecular motion stops at

zero degrees K

(

-273.15˚C

)

DENSITYSlide66

Amount of substance per unit volume of a substance

UNITS

gram/cm

ram/mlSlide67

The more dense, the more heavier something is…

Density =

Which colored substance will have the lowest density?Slide68

The more dense, the more heavier something is…

Density =

GREEN SUBSTANCE!Slide69

The Metric System

A measurement system based on the powers of ten.

POWERS OF TEN HAVE

PREFIXES

YOU

MUST KNOW THEM!!!

Chemistry11 - PowerPoint Presentation

Chemistry11 - PPT Presentation

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