Presentation on theme: "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?"— Presentation transcript:
1Do Now: Focused Free Write Look at the bottle of clear solution on my desk, what do you think it is? Does it have ENERGY?
2Do Now: Take a lab from the Do Now Desk Get into your groups from last time! Get that data!
3Do Now: Copy HW & Lab Pass UP -Pass up Water Shoe box lab Monday: No HWTuesday: Energy HomeworkWednesday: Energy Transfer Practice Question in Packet on Page 7Thursday: Specific Heat WSFriday: No HomeworkExtra Help: Thursday Morning
4Unit 1: ENERGY Stop Monkey-N-ing around and Go Green already! P.S. I’m Mookie the Monkey
5Energy is the ability to do _______ What is ENERGY?Energy is the ability to do _______Work
6Work occurs when a _____ causes an object to _____ in the same direction as the force. move
46Do NowTurn to page 7 in your note packetTake out “Energy HW”
47Method’s of NRG transfer Convection1. __________________: Heated air rises through earth’s 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 earth’s mantle, cool, and sinks.6. __________________: A microwave oven heats soup.7. __________________: A fireplace warming a room.ConductionRadiationConductionConvectionRadiationConvection
91Do 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 5ºC or 20ºC?2) Would it take more energy to raise 5 grams of water 10ºC or 100 grams of water 10ºC
92Specific Heat Quantity of heat needed to raise One gram of any Substance by1 degree Celsius
93Specific HeatThe higher theSpecific heat…The more energy is needed to raise the temperature
95Measuring Specific Heat Energy can be measures in many different ways. Typical units include:____________________, _________________, & ___________________JoulesWattscalories
96The term “Joule” is named after English Scientist James Prescott Joule who lived from 1818 to He discovered that Heat is a type of Energy!1,000 joules =1 kilojoule = 1 Btu
97Do Now!Read the did you know and complete practice questions 1-10!
98What substance has the highest specific heat?Use your Reference Tables Liquid water4.18 Joules/gramºC
992. Why do metals have low specific heats? They are solid2. Why do metals have low specific heats?
1003. Why are pans made of metals with low specific heats? Because metals are goodConductors And have lowspecific heats.Therefore they will heatup quickly and cookyour food faster.
101water 4. Which would Take more energy to raise its Temperature, water Or land?water
1025. Which wouldHeat up and cool offFaster, land or water?land
103Water (liquid) = 4.18 Iron (Fe) = 0.45 Copper (Cu) = 0.38 6. Which of these threesubstances will heat upfastest?Copper because it has thelowest specific heat
104Do Now:1) Describe the energy exchange occurs when liquid water at 0°C turns to ice at 0°C?The water loses energyThe air around the water loses energyThe ice gains energy.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. decreaseb. increasec. remain the same
105require the greatest amount of heat energy to raise its 7. Which material wouldrequire the greatest amountof heat energy to raise itstemperature from 50C to 100 C?A. 10 grams of graniteB. 10 grams of iceC. 10 grams of leadD. 10 grams of iron
106if you wanted to cook your food quickly? 8. Which pan would you useif you wanted to cook your foodquickly?copperironCp = 0.38Cp = 0.45
107require the greatest amount of heat energy to raise its 9. Which material wouldrequire the greatest amountof heat energy to raise itstemperature from 50C to 100 C?A. graniteB. iceC. leadD. iron
10810. 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 g˚C
111Do Now: Copy HW & Green house ditto on desk -Pass up Phase change labMonday: Study for examTuesday: Review book read pages 105 to 109 Answer Questions on page 110Wednesday: Review Book read pages 116 to 118 Questions 39 to 48on 119Thursday: Insolation WorksheetFriday: No HWExtra Help: Monday after school
113Do Now: Copy HW & Lab Pass UP -Pass up signed progress reportMonday: Specific Heat HWTuesday: Electromagnetic Spectrum HWWednesday: Electromagnetic Spectrum WS #1Thursday: Wave WS & StudyFriday: Quiz TodayExtra Help: Tuesday Morning
114Do Now: Focused Free Write What is different about how each of the three popcorns? How were they made? Explain!
115Do Now: -Take a lab from the do now desk -Take out last night’s 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 veryhot soup, a wooden spoonor a metal spoon? Explainyour answer in terms ofspecific heat, which spoonhas the lower specific heat and why?
116Take out your concept map and reading from last nights homework
117Heat Transfer through radiation Lab Find the symbol on theTop right corner of your Lab.Time to get in Lab Groups,Listen for directions..
118Directions: -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.
119Make a PredictionIn 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!
120Make a PredictionIn the space provided on your lab, predict what which cup will heat up fastest, the black cup or the silver cup? Explain your choice!
121Prepare to BeginOne partner is responsible for turning on the heat lampThe other partner should take a temperature reading for each cup for time 0 in Degrees Celsius
122Quick! Record Time 0 for your set up Trade dataAnswer this question:Examine the lamp, what type of electromagnetic energy is the lamp producing?Two Minute Timer
123Quick! Record Time 2 for your set up Trade dataAnswer this question:2.Define the word: specific heatTwo Minute Timer
124Quick! Record Time 4 for your set up Trade dataAnswer this question:3. What is the method of energy transfer responsible for the heat transfer between the lamp and the cans?Two Minute Timer
125Quick! Record Time 6 for your set up Trade dataAnswer this question:4. Look at the data for sand and water which cup is heating up faster?Two Minute Timer
126Quick! Record Time 8 for your set up Trade dataAnswer this question:5. Note which can is getting hotter faster, the black can or the silver can. Explain the data in your own words.Two Minute Timer
127TURN OFF THE LAMP and MOVE IT AWAY FROM THE CANS/CUPS Half Way Done!!! Without disturbing the positions of the cans,TURN OFF THE LAMP andMOVE IT AWAY FROM THE CANS/CUPSHalf Way Done!!!
128Quick! Record Time 10 for your set up Trade dataAnswer this question: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.Two Minute Timer
129Quick! Record Time 12 for your set up Trade dataAnswer this question:7. Explain why the black can appears black based on last nights reading.Two Minute Timer
130Quick! Record Time 14 for your set up Trade dataAnswer this question:8. Look at the data for sand and water which cup is cooling down up faster?Two Minute Timer
131Quick! Record Time 16 for your set up Trade dataAnswer this question:9. Relate this experiment to real life. What type of surface on earth could be represented the silver can? The black can?Two Minute Timer
132Quick! Record Time 18 for your set up Trade dataAnswer this question:Compare your answers to questions 6 and 8, complete this sentence:“Good Absorbers are also good… _______________”Two Minute Timer
133Quick! Record Time 20 for your set up Trade dataAnswer this question: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?Two Minute Timer
134Quick! Record Time 22 for your set up Trade dataAnswer this question:12.By 3:00 P.M. on a summer day would the air be cooler over ocean or land?Two Minute Timer
135Graph your data before you answer the questions!!!!
136Conclusion: Write a short paragraph summarizing your understanding of the interaction between radiation and earth’s 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.
137-Pass up procedure for 3D topo lab 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 5ºC or 20ºC?2) Would it take more energy to raise 5 grams of water 10ºC or 100 grams of water 10ºC
138Do Now:Calculate the amount of energy in joules required to raise the temperature of 5 grams of granite from 82º C degrees to 100º C
142Solid Strong yes yes Liquid no yes Gas Not bonded no no Not bonded Motion How is it Does it have Volume?(Kinetic bonded? A definiteenergy) shape?SolidLittleK.E.MoleculesvibrateStrongyesyesMoreK.E.MoleculesmovefreelyLiquidNotbondedrigidlynoyesMostK.E.MoleculesmovefastGasNotbondednono
151(Earth Science Reference Tables : front page) Properties of Water
152temp 0C HEAT ENERGY ADDED VAPORIZATION 100 CONDENSATION WATER ICE Heating Curve of WaterHEAT ENERGY ADDEDMELTFREEZEVAPORIZATIONCONDENSATIONSTEAMWATERICE(Joules)
153Do Now:-Take out sheet from do now desk and complete, this replaces yesterdays there was a typo-Take out Homework
154Problem 1 : Does temperature change during a phase change 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.
155P∆= LH x Mass P∆= 334J/g x 20g P∆= 6680 J 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 MassP∆= 334J/g x 20gP∆= 6680 J
1563. The most energy is released during which phase change4: The most energy isabsorbed during which phase change:5. Which phase has themost K.E.?condensationVaporizationGAS (STEAM)
157Q= C x Mass x T∆ Q= 4.18J/g°C x 35g x 90°C Q= 13167 J Problem 6: How many joules of heat (Q) energy must be added to 35 grams of liquid water to change the temperature from 10oC to 100oC water vapor? Is this a phase change problem or specific heat?Specific Heat (C)Q= C x Mass x T∆Q= 4.18J/g°C x 35g x 90°CQ= J
158P∆= LH x Mass P∆= 2260 J/g x 35g P∆= 79100 J Problem 7 : How many joules of heat energy must be added to 35 grams to change liquid water at 100oC to water vapor at 100oC? Is this a phase change problem or specific heat?Phase Change (LH)P∆= LH x MassP∆= 2260 J/g x 35gP∆= J
159Q= C x Mass x T∆ Q= 2.00 J/g°C x 35g x 45°C Q= 3150 J Problem 8: How many Joules of heat energy must be added to 35 grams of water vapor to change its temperature from 100oC to 145oC? 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/g°C x 35g x 45°CQ= 3150 J
160Problem 9: How many Joules of heat energy must be added to 35 grams of ice to change the temperature from 10oC to 145oC water vapor? How many steps are in this problem? Show All work.
161MELTING / FREEZING 00 C SEE EARTH SCIENCE REFERENCE TABLE: + 334 J/gramEnergy is absorbedEnergy is released00 C- 334 J/gramSEE EARTH SCIENCE REFERENCE TABLE:
162VAPORIZATION/ CONDENSATION +2260 J/g 1000 C -2260 J/g Energy is absorbedEnergy is releasedVAPORIZATION/CONDENSATION-2260 J/g
163Electromagnetic Energy -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
164Do Now Test is moved to Tuesday Do Now Worksheet on Desk Extra-help on Monday after schoolPass-up Procedure for phase change labTake out Mookie the Monkey Note-packet
165The Earth is always trying to achieve Equilibrium Energy is constantly being re-distributed flowing from source to sink
169All matter radiates some _____________ _____________ ElectromagneticAll matter radiates some _____________ _____________Energy
170ALLThe sun emits energy in _____ wavelengths of the electromagnetic spectrum. Read about the Electromagnetic Spectrum.
171ELECTROMAGNETIC SPECTRUM: REFERENCE TABLE PAGE 14gammaX rayMicrowavesUltra violetInfraredRadio wavesIncreasingwavelengthDecreasingwavelengthvisibleViolet Blue Green Yellow Orange Red
172wavelength Each type of energy differs in its __________ visible gammaX rayMicrowavesUltra violetInfraredRadio wavesIncreasingwavelengthDecreasingwavelengthvisibleViolet Blue Green Yellow Orange Red
173A wavelength is the distance between two crests of the wave. Read about Waves!A wavelength is the distance between two crests of the wave.
174Frequency is defined as a number of cycles per unit time.
1761. 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?
177VISIBLEThe Sun gives off light and heat in the form of _________________ and __________________ electromagnetic energy.UV
178However, the short wavelengths (dangerous UV radiation) are mostly absorbed by the ozone so they don’t reach earth’s surfaceGAMMAOZONE
179stratosphereThe Ozone layer is found in the _________________ layer of the atmosphere.
180visible Violet Blue Green Yellow Orange Red gamma X ray gammaX rayMicrowavesUltra violetInfraredRadio wavesIncreasingwavelengthDecreasingwavelengthvisibleViolet Blue Green Yellow Orange Red
181UV OZONE gamma, x-rays, SHORT WAVE LENGTHS ARE MOSTLY ABSORBED by THE OZONE INTHE STRATOSPHEREgamma, x-rays,UVOZONE
182This energy is absorbed by Earth’s surface, which in turn reradiates the energy in the form of heat called ________________ radiationinfrared
190Interactions between Electromagnetic Energy & The Environment:
191ABSORBTION - UV ABSORBED by REFLECTION SCATTERING REFRACTION 126.96.36.199.5.ABSORBTION- UV ABSORBED byOZONE IN STRATOSPHEREINFRARED ABSORBED BYCO2&H2O vapormethane, nitrous oxideREFLECTIONSCATTERINGREFRACTIONTRANSMISSION- BY CLOUDS, ICE,SNOW & WATER- BY AEROSOLS,WATER DROPLETS, ICE CRYSTALS,AIR POLLUTANTS, DUST, POLLENLIGHT IS BENT AS ITMOVES THROUGHVARIED DENSITIESWHEN ENERGYPASSES THROUGHA MEDIUM
1921. ABSORPTION 2. REFLECTION 3.SCATTERING 4. REFRACTION 5. TRANSMISSION Do Now: Turn to page 15 in your note packet, start filling in the blanks1. ABSORPTION2. REFLECTION3.SCATTERING4. REFRACTION5. TRANSMISSION
193halfLess than ______of the incoming solar radiation is received by the Earth’s surface
194Do Now Ditto On Do Now Desk Sit Quietly in your Assigned seats Take out HW WorksheetSmile its Friday!
195Surface properties of the Earth and Absorption of Energy:
197Absorption 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?DarkRoughPavement warms before grassy lawns.LightShinyFlatSnow and Ice reflect insolation and remain cold.
210Greenhouse EffectCO2and H2O absorb infrared that is re-radiated from the surface of the Earth. Therefore, holding that heat in the atmosphere and raising the global temperature.
211H20 VAPOR CO2 Ozone CFCs What are the Greenhouse gases? METHANE GAS INFRAREDOzoneCFCs
212Without some greenhouse gases, the Earth would be too _____________ for us to survive. But an overload of greenhouse gases creates a problem as well!cold
213CO2 absorbs infrared CO2 CO2 H20 VAPOR How does too Much contribute to Global warming?CO2CO2H20 VAPORINFRAREDMETHANE GASCO2 absorbsinfrared
214Greenhouse EffectWhat human activities contribute to CO2 production and an increase in the greenhouse effect?Burning of fossil fuelsGlobal deforestation
215If 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; andRelocation of major crop growing areas.
216c Which of the following best represents the type of energy received by the Earthand the re-emitted by the Earth?ABc
217c Which of the following best represents the type of energy received by the Earthand the re-emitted by the Earth?ABc
218WHICH TYPE OF ENERGY IS REPRESENTED BY THE RADIATION AT B? B A INSOLATIONC) VISIBLE LIGHTB) ULTRAVIOLETBAD) INFRARED ENERGY
219WHICH TYPE OF ENERGY IS REPRESENTED BY THE RADIATION AT B? B A INSOLATIONC) VISIBLE LIGHTB) ULTRAVIOLETBAD) INFRARED ENERGY
220An energy resource that is _______________________________________. What is a NON-RENEWABLE RESOURCE?An energy resourcethat is _______________________________________.Being used faster than Earth Produces it
221Examples: __________________ What is a NON-RENEWABLE RESOURCE?Examples:__________________Fossil Fuels, minerals
222What is a NON-RENEWABLE RESOURCE? To make our non-renewable resources last longer we can _____________________________________________.ReduceReuseRecycle
223An energy resource that is _______________________________________. What is a RENEWABLE RESOURCE?An energy resourcethat is _______________________________________.Earth supplies faster than we use it “unlimited”
224Examples: _______________________________ What is a RENEWABLE RESOURCE?Examples: _______________________________Solar, wind, biomass (trees etc..)
225What is a RENEWABLE RESOURCE? A renewable resource produces less _________ (substance that can harm living things and/or the environmentpollution
226Look 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?