Do Now: Focused Free Write Look at the bottle of clear solution on my desk, what do you think it is? Does it have ENERGY?
Transcript
Slide 1
Slide 2
Do Now: Look at the bottle of clear solution on my desk, what
do you think it is? Does it have ENERGY? Do Now: Focused Free Write
Look at the bottle of clear solution on my desk, what do you think
it is? Does it have ENERGY?
Slide 3
Do Now: Do Now: Take a lab from the Do Now Desk Get into your
groups from last time! Get that data!
Slide 4
Do Now: Copy HW & Lab Pass UP -Pass up Water Shoe box lab
Monday: No HW Tuesday: Energy Homework Wednesday: Energy Transfer
Practice Question in Packet on Page 7 Thursday: Specific Heat WS
Friday: No Homework Extra Help: Thursday Morning
Slide 5
Unit 1: ENERGY 4 Stop Monkey-N-ing around and Go Green already!
P.S. Im Mookie the Monkey
Slide 6
What is ENERGY? Energy is the ability to do _______ Work 5
Slide 7
Work occurs when a _____ causes an object to _____ in the same
direction as the force. move force 6
Slide 8
Slide 9
FORMS OF ENERGY Both basic states of energy, Kinetic and
potential, can exist in many forms!
Slide 10
The total ________ energy of the particles in matter.
(molecular motion) Kinetic THERMAL (HEAT) 9
Slide 11
A type of mechanical energy. It is the energy produced when
objects ________. Ex: tuning fork, bell vibrate SOUND 10
Slide 12
Energy with which ______ objects perform work. Ex: Wind,
flowing water, using a hammer moving MECHANICAL 11
Slide 13
A form of energy produced by the ________ of ________ movement
ELECTRICITY electrons 12
Slide 14
Energy STORED in chemical ____ that can be released. Ex: food,
fossil fuels, battery acid bonds CHEMICAL 13
Slide 15
Stored energy due to a change in the shape of an object. Ex:
_______________ A stretched rubber band STORED MECHANICAL ENERGY:
14
Slide 16
STORED MECHANICAL ENERGY: 15
Slide 17
A form of _______ energy that moves in a ______. Ex: lamp,
stars radiant LIGHT wave 16
Slide 18
All forms of energy that come from the ______. SUN SOLAR ENERGY
17
Slide 19
Energy STORED in the ________ (center) of an atom. Ex: nuclear
bombs nucleus NUCLEAR 18
Slide 20
Heat energy STORED within the _____. Ex: Volcanic eruptions,
geysers Earth GEOTHERMAL (HEAT) 19
Slide 21
All forms of energy can be classified as Kinetic or potential.
The two basic states of energy. So, whats the difference? 20
Slide 22
Slide 23
Slide 24
Slide 25
1) Potential energy is stored energy due to and objects
_____________ Position POTENTIAL ENERGY 24
Slide 26
2) An object that is lifted from its position on Earth has
__________ potential Energy which depends on ______ and mass
gravitational POTENTIAL ENERGY height 25
Slide 27
3) Massive objects have _____ potential energy than less
massive objects more POTENTIAL ENERGY 26
Slide 28
4) An object at a higher elevation will have _____ potential
energy than an object at a lower elevation more POTENTIAL ENERGY
27
Slide 29
Do Now Pass up procedure for your signed test Take out Homework
Complete worksheet on Do Now desk
Slide 30
1)Kinetic is energy of ___________ Motion KINETIC ENERGY
29
Slide 31
2) Kinetic depends on the _____ and the _______ of an object.
MASS KINETIC ENERGY SPEED 30
Slide 32
3) Faster objects have ____ kinetic energy than slower objects.
More KINETIC ENERGY 31
Slide 33
REVIEW QUESTONS: A B C D WHICH SKIIER HAS THE GREATEST KINETIC
ENERGY?
Slide 34
WHICH SKIIER HAS THE GREATEST POTENTIAL ENERGY? A B C D
Slide 35
Do you remember the LAW OF CONSERVATION OF MASS AND ENERGY?
ENERGY TRANSFORMATIONS 34
Slide 36
Law of Conservation of ENERGY: (same for mass) Mass/ NRG
____________ Mass/ NRG ______________ Mass/ Energy can only
__________ Cant be made Cant be destroyed Change form!!!
Slide 37
DURING ENERGY CHANGES, IF ONE BODYIS LOSING ENERGY, THE OTHER
IS _______ ENERGY: THE WAVE LOSES ENERGY : THE SAND GAINS ENERGY
Gaining
Slide 38
THE WAVE LOSES ENERGY : THE SAND GAINS ENERGY DURING ENERGY
CHANGES, IF ONE BODYIS LOSING ENERGY THE OTHER IS GAINING
ENERGY:
Slide 39
DURING ENERGY CHANGES THE TOTAL ENERGY REMAINS THE SAME ENERGY
ALWAYS FLOWS FROM HIGH TO LOW (source to sink ) DURING ENERGY
CHANGES THE TOTAL ENERGY REMAINS THE SAME ENERGY ALWAYS FLOWS FROM
HIGH TO LOW (source to sink )
Slide 40
THE ENERGY WILL FLOW FROM: THE ENERGY WILL FLOW FROM: THE FLAME
TO THE FINGER THE FLAME TO THE FINGER
Slide 41
ICE ENERGY WILL FLOW FROM THE FINGER TO THE ICE THE FINGER TO
THE ICE
Slide 42
THE LIQUID LOSES ENERGY AS THE ICE GAINS ENERGY THE LIQUID
LOSES ENERGY AS THE ICE GAINS ENERGY
Slide 43
WHEN WILL THE EXCHANGE OF ENERGY STOP? WHEN WILL THE EXCHANGE
OF ENERGY STOP? WHEN EQUILIBRIUM IS REACHED WHEN EQUILIBRIUM IS
REACHED THE LIQUID AND THE ICE REACH THE SAME TEMPERATURE THE
LIQUID AND THE ICE REACH THE SAME TEMPERATURE
Slide 44
Very often during the energy transformation process, some ____
energy is produced due to friction. This is wasted energy and is
lost to the environment. heat UNUSABLE ENERGY: 43
Slide 45
Example: A television changes electrical NRG into light and
sound NRG ENERGY TRANSFORMATIONS 44
Slide 46
ENERGY TRANSFORMATIONS 45
Slide 47
Do Now Turn to page 7 in your note packet Take out Energy
HW
Slide 48
Methods of NRG transfer 1. __________________: Heated air rises
through earths atmosphere. 2. __________________: An ice cube melts
when dropped into a glass of warm water. 3. __________________:
Light leaves the sun and 8 minutes later strikes earth. 4.
__________________: You burn you tongue eating hot pizza. 5.
__________________: Hot magma rises inside earths mantle, cool, and
sinks. 6. __________________: A microwave oven heats soup. 7.
__________________: A fireplace warming a room. Convection
Radiation Conduction Convection Radiation Convection
Slide 49
28262423 A 26262423 B 26252422
Slide 50
Slide 51
Slide 52
Methods of Energy Transfer
Slide 53
Energy moves from regions of _________ concentration to
________ concentrations of energy. high low 52
Slide 54
_______ To _______ Source sink
Slide 55
There are 3 methods of Energy Transfer Radiation ConDuction
ConVection
Slide 56
Con D uction
Slide 57
Explanation of Transfer D irect contact (touch) Molecule To
Molecule
Slide 58
-Conduction is a form of heat transfer by direct _______ of
molecules contact 57
Slide 59
-Conduction occurs fastest in _______ solids Best Medium for
energy transfer 58
Slide 60
-_______ are the best conductors of he heat energy. metals
59
Slide 61
Examples Touching a hot surface Electricity
Slide 62
Do Now Take a Conduction lab & read:
Slide 63
Con ection
Slide 64
Explanation of Transfer Energy transfer Due to Density
differences
Slide 65
-Convection is a form of heat transfer that occurs by up and
down motions of a _______ due to differences in ______ fluid
density 64
Slide 66
-occurs ONLY in _____ which are liquids and gases! fluids Best
Medium for energy transfer 65
Slide 67
Examples Hot air or water rising Volcanoes Lava lamp
Slide 68
convection
Slide 69
Radiatio
Slide 70
Explanation of Transfer Electromagnetic (EM) waves that move
Through a vacuum (empty space)
Slide 71
-radiation is the transfer of heat in _____. waves 70
Slide 72
-Electromagnetic radiation travels at the speed of ______.
light 71
Slide 73
Best Medium for energy transfer No medium needed
Slide 74
Examples Gamma X-rays UV Visible Infrared Microwave radio
Slide 75
Do Now: Name that type of heat transfer! Conduction!
Convection! Radiation! 74
Slide 76
Do Now: Focused Free Write (No HW tonight) What is different
about how each of the three popcorns? How were they made?
Explain!
Slide 77
Do Now: In which direction does the air move? 28262423 A
26262423 B 26252422
Slide 78
Slide 79
Do Now: In which direction does the energy move? 28262423 A
26262423 B 26252422
Slide 80
Slide 81
Do Now: What will heat up faster 1. Or 2. Or 3. Or
Slide 82
1. HEAT: the energy of moving __________ particles HEAT NOTES
81
Slide 83
2. HOT OBJECTS contain __________ heat than cold ones more HEAT
NOTES 82
Slide 84
3. All objects above __________ contain heat Absolute zero HEAT
NOTES 83
Slide 85
4. Heat always flows from ______ objects to ______ objects
until the objects reach _____ temperature. hotter HEAT NOTES cooler
same 84
Slide 86
5. The greater the difference in temperature between the two
objects, the _________ heat is transferred. faster HEAT NOTES
85
Slide 87
HOW IS HEAT TRANSFERRED BETWEEN OBJECTS? 86
Slide 88
Heat Transfer at Work
Slide 89
Name that type of heat transfer! Conduction! Convection!
Radiation! 88
Slide 90
Do Now Read the article about Latent Heat while I set up the
Demo I will collect both labs tomorrow! Tomorrow report to large
computer room in the Library
Slide 91
Heat Transfer across the globe http://www.classzone.com/b
ooks/earth_science/terc/con tent/visualizations/es1705/e
s1705page01.cfm http://www.classzone.com/b
ooks/earth_science/terc/con tent/visualizations/es1705/e
s1705page01.cfm
Slide 92
Do Now: HW on Desk Take a Lab from Do Now desk Reflect on these
two questions: 1) Would it take more energy to raise 5 g of water
5C or 20C? 2) Would it take more energy to raise 5 grams of water
10C or 100 grams of water 10C
Slide 93
Specific Heat Quantity of heat needed to raise One gram of any
Substance by 1 degree Celsius
Slide 94
Specific Heat The higher the Specific heat The more energy is
needed to raise the temperature
Slide 95
Slide 96
Measuring Specific Heat Energy can be measures in many
different ways. Typical units include: ____________________,
_________________, & ___________________ Joules Watts
calories
Slide 97
The term Joule is named after English Scientist James Prescott
Joule who lived from 1818 to 1889. He discovered that Heat is a
type of Energy! 1,000 joules =1 kilojoule = 1 Btu
Slide 98
Do Now! Read the did you know and complete practice questions
1-10!
Slide 99
1.What substance has the highest specific heat? Use your
Reference Tables Liquid water 4.18 Joules/gramC
Slide 100
2. Why do metals have low specific heats? They are solid
Slide 101
3. Why are pans made of metals with low specific heats ?
Because metals are good Conductors And have low specific heats.
Therefore they will heat up quickly and cook your food faster.
Slide 102
water 4. Which would Take more energy to raise its Temperature,
water Or land?
Slide 103
land 5. Which would Heat up and cool off Faster, land or
water?
Slide 104
Water (liquid) = 4.18 Iron (Fe) = 0.45 Copper (Cu) = 0.38 6.
Which of these three substances will heat up fastest? Copper
because it has the lowest specific heat
Slide 105
Do Now: 1) Describe the energy exchange occurs when liquid
water at 0C turns to ice at 0C? a.The water loses energy b.The air
around the water loses energy c.The ice gains energy. d.The air and
the water both gain energy. 2) As heat energy is added to an open
container of boiling water, the temperature of the boiling water
will.. a. decrease b. increase c. remain the same
Slide 106
7. Which material would require the greatest amount of heat
energy to raise its temperature from 5 0 C to 10 0 C? A. 10 grams
of granite B. 10 grams of ice C. 10 grams of lead D. 10 grams of
iron
Slide 107
8. Which pan would you use if you wanted to cook your food
quickly? copperiron Cp = 0.38 Cp = 0.45
Slide 108
9. Which material would require the greatest amount of heat
energy to raise its temperature from 5 0 C to 10 0 C? A. granite B.
ice C. lead D. iron
Slide 109
10. Calculate how many joules would be required to raise 3
grams of water from 50 C to 65 C. 3g x15 C x 4.18 J =188.1j gC
Slide 110
Slide 111
Slide 112
Do Now: Copy HW & Green house ditto on desk -Pass up Phase
change lab Monday: Study for exam Tuesday: Review book read pages
105 to 109 Answer Questions 11-31 on page 110 Wednesday: Review
Book read pages 116 to 118 Questions 39 to 48 on 119 Thursday:
Insolation Worksheet Friday: No HW Extra Help: Monday after
school
Slide 113
Do Now: Take out review sheet
Slide 114
Do Now: Copy HW & Lab Pass UP -Pass up signed progress
report Monday: Specific Heat HW Tuesday: Electromagnetic Spectrum
HW Wednesday: Electromagnetic Spectrum WS #1 Thursday: Wave WS
& Study Friday: Quiz Today Extra Help: Tuesday Morning
Slide 115
Do Now: Focused Free Write What is different about how each of
the three popcorns? How were they made? Explain!
Slide 116
Do Now: - Take a lab from the do now desk -Take out last nights
HW -Complete the FOCUSED FREE WRITE on the front page of the lab:
Which spoon would heat up faster when placed in a bowl of very hot
soup, a wooden spoon or a metal spoon? Explain your answer in terms
of specific heat, which spoon has the lower specific heat and
why?
Slide 117
Take out your concept map and reading from last nights
homework
Slide 118
Find the symbol on the Top right corner of your Lab. Time to
get in Lab Groups, Listen for directions.. Heat Transfer through
radiation Lab
Slide 119
Directions: -You will work in groups of four to complete this
Lab. -If your paper has an A in the top right corner, you and your
partner will be monitoring the SAND AND WATER cups. -If your paper
has a B in the top right corner, you and your partner will be
monitoring the BLACK AND SILVER cans. -Both groups are responsible
for both sets of data so it is important to communicate to each
other.
Slide 120
In the space provided on your lab, predict what which cup will
heat up fastest, the cup of sand or the cup of water? Explain your
choice! Make a Prediction
Slide 121
In the space provided on your lab, predict what which cup will
heat up fastest, the black cup or the silver cup? Explain your
choice! Make a Prediction
Slide 122
-One partner is responsible for turning on the heat lamp -The
other partner should take a temperature reading for each cup for
time 0 in Degrees Celsius Prepare to Begin
Slide 123
Quick! Record Time 0 for your set up -Trade data -Answer this
question: Two Minute Timer 1.Examine the lamp, what type of
electromagnetic energy is the lamp producing?
Slide 124
Quick! Record Time 2 for your set up -Trade data -Answer this
question: Two Minute Timer 2. Define the word: specific heat
Slide 125
Quick! Record Time 4 for your set up -Trade data -Answer this
question: Two Minute Timer 3. What is the method of energy transfer
responsible for the heat transfer between the lamp and the
cans?
Slide 126
Quick! Record Time 6 for your set up -Trade data -Answer this
question: Two Minute Timer 4. Look at the data for sand and water
which cup is heating up faster?
Slide 127
Quick! Record Time 8 for your set up -Trade data -Answer this
question: Two Minute Timer 5. Note which can is getting hotter
faster, the black can or the silver can. Explain the data in your
own words.
Slide 128
Without disturbing the positions of the cans, TURN OFF THE LAMP
and MOVE IT AWAY FROM THE CANS/CUPS Half Way Done!!!
Slide 129
Quick! Record Time 10 for your set up -Trade data -Answer this
question: Two Minute Timer 6. Note which cup is hotter: The sand or
the water. Based on this compare the density of the air over the
sand to the density of the air over the water.
Slide 130
Quick! Record Time 12 for your set up -Trade data -Answer this
question: Two Minute Timer 7. Explain why the black can appears
black based on last nights reading.
Slide 131
Quick! Record Time 14 for your set up -Trade data -Answer this
question: Two Minute Timer 8. Look at the data for sand and water
which cup is cooling down up faster?
Slide 132
Quick! Record Time 16 for your set up -Trade data -Answer this
question: Two Minute Timer 9. Relate this experiment to real life.
What type of surface on earth could be represented the silver can?
The black can?
Slide 133
Quick! Record Time 18 for your set up -Trade data -Answer this
question: Two Minute Timer 10. Compare your answers to questions 6
and 8, complete this sentence: Good Absorbers are also good
_______________
Slide 134
Quick! Record Time 20 for your set up -Trade data -Answer this
question: Two Minute Timer 11. Texture also plays a key role in the
absorption of heat energy. Compare a rough surface and a smooth
surface, which one will absorb more energy and why?
Slide 135
Quick! Record Time 22 for your set up -Trade data -Answer this
question: Two Minute Timer 12. By 3:00 P.M. on a summer day would
the air be cooler over ocean or land?
Slide 136
Graph your data before you answer the questions!!!!
Slide 137
Conclusion: Write a short paragraph summarizing your
understanding of the interaction between radiation and earths
different surfaces. Use at least five of vocabulary words of these
vocabulary words: Electromagnetic spectrum, visible light, prism,
ozone, absorption, reflection, temperature, specific heat,
reradiation, and infrared radiation.
Slide 138
Do Now: HW on Desk -Pass up procedure for 3D topo lab - Reflect
on these two questions: 1) Would it take more energy to raise 5 g
of water 5C or 20C? 2) Would it take more energy to raise 5 grams
of water 10C or 100 grams of water 10C
Slide 139
Do Now: Calculate the amount of energy in joules required to
raise the temperature of 5 grams of granite from 82 C degrees to
100 C
Slide 140
PHASES OF Matter: PHASES OF Matter:
Slide 141
Matter is anything made of atoms and molecules.
Slide 142
B) LIQUID A) SOLID C) GAS
Slide 143
Motion How is it Does it have Volume? (Kinetic bonded? A
definite energy)shape? Little K.E. Molecules vibrate Strong yes
More K.E. Molecules move freely Not bonded rigidly no yes Most K.E.
Molecules move fast Not bonded no Gas Liquid Solid
Slide 144
Slide 145
Slide 146
What are the changes of phase called? solid liquid gas FREEZING
MELTING VAPORIZATION CONDENSATION
Slide 147
2. ENERGY IS RELEASED (lost) DURING: SOLID LIQUID GASLIQUID
FREEZING CONDENSATION from higher K.E. to lower K.E.
Slide 148
3. ENERGY IS ABSORBED (gained) DURING: SOLID LIQUID GASLIQUID
MELTING VAPORIZATION from lower K.ETo higher K.E.
Slide 149
Do Now -Take out lab, pass up procedure
Slide 150
Latent heat Energy stored during a phase change is called
__________________ No change in temperature 149
Slide 151
TAKE OUT YOUR EARTH SCIENCE REFERENCE TABLES 150
Slide 152
Properties of Water (Earth Science Reference Tables : front
page)
Slide 153
temp 0 C 100 Heating Curve of Water HEAT ENERGY ADDED 0 MELT
FREEZE VAPORIZATION CONDENSATION STEAM WATER ICE (Joules)
Slide 154
Do Now: -Take out sheet from do now desk and complete, this
replaces yesterdays there was a typo -Take out Homework
Slide 155
Problem 1 : Does temperature change during a phase change?
___________ Explain: NO!!!! The energy gained by boiling water or
melting ice is stored as latent heat. Likewise this latent heat is
released to the environment during condensation and freezing. This
absorbed or released heat is used to change the phase not the
temperature.
Slide 156
Problem 2: How many Joules of heat energy must be added to 20
grams of ice at 0oC to melt it completely to liquid water at 0oC?
Show All work.: P= LH x Mass P= 334J/g x 20g P= 6680 J
Slide 157
3. The most energy is released during which phase change 4: The
most energy is absorbed during which phase change: 5. Which phase
has the most K.E.? GAS (STEAM) condensation Vaporization
Slide 158
Problem 6: How many joules of heat (Q) energy must be added to
35 grams of liquid water to change the temperature from 10 o C to
100 o C water vapor? Is this a phase change problem or specific
heat? Q= C x Mass x T Q= 4.18J/gC x 35g x 90C Q= 13167 J Specific
Heat (C)
Slide 159
Problem 7 : How many joules of heat energy must be added to 35
grams to change liquid water at 100 o C to water vapor at 100 o C?
Is this a phase change problem or specific heat? P= LH x Mass P=
2260 J/g x 35g P= 79100 J Phase Change (LH)
Slide 160
Problem 8: How many Joules of heat energy must be added to 35
grams of water vapor to change its temperature from 100 o C to 145
o C? Show all work. Is this a phase change problem or specific
heat? Specific Heat (C) Q= C x Mass x T Q= 2.00 J/gC x 35g x 45C Q=
3150 J
Slide 161
Problem 9: How many Joules of heat energy must be added to 35
grams of ice to change the temperature from 10 o C to 145 o C water
vapor? How many steps are in this problem? Show All work.
Slide 162
SEE EARTH SCIENCE REFERENCE TABLE: MELTING / FREEZING + 334
J/gram Energy is absorbed Energy is released 0 0 C - 334
J/gram
Slide 163
100 0 C +2260 J/g Energy is absorbed Energy is released
VAPORIZATION/ CONDENSATION -2260 J/g
Slide 164
-Quiz is still Friday will cover everything up to the
greenhouse effect. More details tomorrow. -No lunch club today,
sorry! -Single period exam on Tuesday on Entire Energy Packet
Slide 165
Do Now Test is moved to Tuesday Do Now Worksheet on Desk
Extra-help on Monday after school Pass-up Procedure for phase
change lab Take out Mookie the Monkey Note-packet
Slide 166
The Earth is always trying to achieve Equilibrium Energy is
constantly being re-distributed flowing from source to sink
Slide 167
The Earth Receives Energy from two sources:
Slide 168
SUN
Slide 169
Radioactive Energy CORE
Slide 170
All matter radiates some _____________ _____________
Electromagnetic Energy
Slide 171
The sun emits energy in _____ wavelengths of the
electromagnetic spectrum. Read about the Electromagnetic Spectrum.
ALL
Slide 172
ELECTROMAGNETIC SPECTRUM: REFERENCE TABLE PAGE 14
Increasingwavelength Violet Blue Green Yellow Orange Red visible 10
-10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray Ultra violet
Infrared Microwaves Radio waves Decreasingwavelength
Slide 173
Increasingwavelength Violet Blue Green Yellow Orange Red
visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray
Ultra violet Infrared Microwaves Radio waves Decreasingwavelength
Each type of energy differs in its __________ wavelength
Slide 174
Read about Waves! A wavelength is the distance between two
crests of the wave.
Slide 175
Frequency is defined as a number of cycles per unit time.
Slide 176
Slide 177
1. Explain the diagram above in no more than 3 sentences:
________________________________
__________________________________________________________________________
__________________________________________________________________________
2. Which types of electromagnetic energy have the greatest and
least amount of energy? (Highest temperatures vs. lowest
temperatures)
____________________________________________________________________________________________
______________________________________________________________________
3. How are the different types of electromagnetic energy
distinguished from one another?
____________________________________________________________________________________________
______________________________________________________________________
4. What types of electromagnetic energy are between Microwaves and
X-Rays?
____________________________________________________________________________________________
______________________________________________________________________
5. Explain how Gamma Rays and X-Rays are different and similar?
____________________________________________________________________________________________
______________________________________________________________________
6. Why do you think you wear a lead shield when you have an X-Ray?
____________________________________________________________________________________________
______________________________________________________________________
7. Based on the electromagnetic spectrum why do you think UV rays
are dangerous to human health?
____________________________________________________________________________________________
______________________________________________________________________
Slide 178
The Sun gives off light and heat in the form of
_________________ and __________________ electromagnetic energy.
VISIBLE UV
Slide 179
However, the short wavelengths (dangerous UV radiation) are
mostly absorbed by the ozone so they dont reach earths surface
OZONE GAMMA
Slide 180
The Ozone layer is found in the _________________ layer of the
atmosphere. stratosphere
Slide 181
Increasingwavelength Violet Blue Green Yellow Orange Red
visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray
Ultra violet Infrared Microwaves Radio waves
Decreasingwavelength
Slide 182
SHORT WAVE LENGTHS ARE MOSTLY ABSORBED by THE OZONE IN THE
STRATOSPHERE gamma, x-rays, OZONE UV
Slide 183
This energy is absorbed by Earths surface, which in turn
reradiates the energy in the form of heat called ________________
radiation infrared
Slide 184
OZONE VISIBLE LIGHT : PASSES THROUGH THE ATMOSPHERE WITH THE
GREATEST INTENSITY VISIBLE LIGHT : PASSES THROUGH THE ATMOSPHERE
WITH THE GREATEST INTENSITY
Slide 185
Slide 186
Heat energy that Earth re-radiates Sun emits all wavelengths
Infrared:
Slide 187
Increasingwavelength Violet Blue Green Yellow Orange Red
visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 gammaX ray
Ultra violet Infrared Microwaves Radio waves
Decreasingwavelength
Slide 188
How does too Much contribute to Global warming? CO 2 H 2 0
VAPOR METHANE GAS INFRARED CO 2 CO 2 absorbs infrared
Slide 189
Do Now: Take a sheet from the do now desk. -This is the answer
key to the review packet handed out the first day of energy
-Focused Free Write: Is temperature a measure of heat energy?
Slide 190
Slide 191
Interactions between Electromagnetic Energy & The
Environment:
Slide 192
1. 2. 3. 4. 5. ABSORBTION REFLECTION SCATTERING REFRACTION
TRANSMISSION REFLECTION SCATTERING REFRACTION TRANSMISSION - UV
ABSORBED by OZONE IN STRATOSPHERE INFRARED ABSORBED BY - BY CLOUDS,
ICE, SNOW & WATER - BY CLOUDS, ICE, SNOW & WATER - BY
AEROSOLS, WATER DROPLETS, ICE CRYSTALS, AIR POLLUTANTS, DUST,
POLLEN WATER DROPLETS, ICE CRYSTALS, AIR POLLUTANTS, DUST, POLLEN
LIGHT IS BENT AS IT MOVES THROUGH VARIED DENSITIES LIGHT IS BENT AS
IT MOVES THROUGH VARIED DENSITIES WHEN ENERGY PASSES THROUGH A
MEDIUM WHEN ENERGY PASSES THROUGH A MEDIUM CO 2 & H 2 O vapor
methane, nitrous oxide
Slide 193
1. ABSORPTION 2. REFLECTION 3.SCATTERING 4. REFRACTION 5.
TRANSMISSION Do Now: Turn to page 15 in your note packet, start
filling in the blanks
Slide 194
Less than ______ of the incoming solar radiation is received by
the Earths surface half
Slide 195
Do Now Ditto On Do Now Desk Sit Quietly in your Assigned seats
Take out HW Worksheet Smile its Friday!
Slide 196
Surface properties of the Earth and Absorption of Energy:
Slide 197
Color: Texture: Reflection vs. Absorption & Radiation Rough
surface absorbs smooth surface reflects Light (white) reflects dark
(black) absorbs
Slide 198
Absorption Good absorbers are also good re-radiators. What type
of surface is the best absorber? What type of surface is the best
reflector of radiation? Dark Rough Light Shiny Flat Snow and Ice
reflect insolation and remain cold. Pavement warms before grassy
lawns.
Slide 199
Slide 200
ELECTROMAGNETIC SPECTRUM: LAB Increasingwavelength Violet Blue
Green Yellow Orange Red visible 10 -10 10 -8 10 -6 10 -4 10 -2 10 0
10 2 10 4 gammaX ray Ultra violet Infrared Microwaves Radio waves
Decreasingwavelength
Slide 201
Spectroscope Lab
Slide 202
Do Now on Desk Aim: Greenhouse Effect Phase change lab due
tomorrow Review Packet due tomorrow Energy Exam next Tuesday Extra
Help Today After School
Slide 203
Greenhouse Effect Short wavelength visible light enters the
greenhouse, is absorbed, then re-radiated as longer wavelength
infrared (heat). The glass traps the infrared.
Slide 204
What is Global Warming? An ___________ in the Earths Average
surface air temperature increase
Slide 205
THE GREENHOUSE EFFECT 204
Slide 206
THE GREENHOUSE EFFECT Energy absorbed HEAT IS TRAPPED BY THE
GLASS OF THE GREENHOUSE Incoming is Short wave Ex: Visible light
outgoing is Longer wave Infrared 205
Slide 207
Short wave radiation like ___________ passes through the glass
of a greenhouse and is _______________ by the objects inside the
greenhouse. Visible light absorbed 206
Slide 208
These objects __________________ the energy as
____________________, which get reflected back into the greenhouse
and warms the air. infrared Long Wave Radiation reradiate 207
Slide 209
In Earths atmosphere, there are many gases that act like the
glass of a greenhouse and ________ long-wave radiation, keeping it
in the Earths Atmosphere. These are known as trap 208
Slide 210
Greenhouse Gases! 209
Slide 211
Greenhouse Effect CO 2 and H 2 O absorb infrared that is
re-radiated from the surface of the Earth. Therefore, holding that
heat in the atmosphere and raising the global temperature.
Slide 212
What are the Greenhouse gases? CO 2 H 2 0 VAPOR METHANE GAS
INFRARED Ozone CFCs
Slide 213
Without some greenhouse gases, the Earth would be too
_____________ for us to survive. But an overload of greenhouse
gases creates a problem as well! cold
Slide 214
How does too Much contribute to Global warming? CO 2 H 2 0
VAPOR METHANE GAS INFRARED CO 2 CO 2 absorbs infrared
Slide 215
Greenhouse Effect What human activities contribute to CO 2
production and an increase in the greenhouse effect? Burning of
fossil fuels Global deforestation
Slide 216
If present trends continue possible effects may include Rising
sea levels due to melting polar ice caps; Increasing frequency and
severity of storms and hurricanes; More frequent heat waves and
droughts; and Relocation of major crop growing areas.
Slide 217
A B c Which of the following best represents the type of energy
received by the Earth and the re-emitted by the Earth?
Slide 218
A B c Which of the following best represents the type of energy
received by the Earth and the re-emitted by the Earth?
Slide 219
A B A)INSOLATION C) VISIBLE LIGHT B) ULTRAVIOLET WHICH TYPE OF
ENERGY IS REPRESENTED BY THE RADIATION AT B? D) INFRARED
ENERGY
Slide 220
A B A)INSOLATION C) VISIBLE LIGHT B) ULTRAVIOLET WHICH TYPE OF
ENERGY IS REPRESENTED BY THE RADIATION AT B? D) INFRARED
ENERGY
Slide 221
An energy resource that is __________________
__________________ ___. Being used faster than Earth Produces it
What is a NON-RENEWABLE RESOURCE? 220
Slide 222
Examples: __________________ Fossil Fuels, minerals What is a
NON-RENEWABLE RESOURCE? 221
Slide 223
To make our non- renewable resources last longer we can
__________________ __________________ _________. Reduce Reuse
Recycle What is a NON-RENEWABLE RESOURCE? 222
Slide 224
An energy resource that is __________________
__________________ ___. Earth supplies faster than we use it
unlimited What is a RENEWABLE RESOURCE? 223
Slide 225
Examples: __________________ _____________ Solar, wind, biomass
(trees etc..) What is a RENEWABLE RESOURCE? 224
Slide 226
A renewable resource produces less _________ (substance that
can harm living things and/or the environment pollution What is a
RENEWABLE RESOURCE? 225
Slide 227
Look at the pie graph!!! Only 7% of our energy consumption is
from renewable resources!!! Try to make little changes in your life
to reduce your dependence on Non- Renewable Resources! What do you
plan to do?