welcome to science 71 april 29, 2014 day 142. period b rules “ i promise to check the sink at the...
Post on 18-Jan-2016
216 Views
Preview:
TRANSCRIPT
Welcome to Science 71
April 29, 2014Day 142
Period B Rules
“ I promise to check the sink at the end of class, and …”
America Recycles Day is coming!Make it Zero Waste Day!
Objective Explain and provide examples of methods of heat energy
transfer Illustrate and describe the kinetic theory of matter,
including phase changes. Demonstrate an understanding of the relationship between
kinetic and potential energies. The Main 3 Components to Electricity
STUDENT VERNACULAR Using vocabulary explain how heat moves from place to
place, matter to matter Using vocabulary explain how Kinetic Energy is
responsible for the various states of matter (Solid, Liquid, Gas, etc)
How does an objects Energy level change as it moves from Potential Energy (PE) to Kinetic Energy (KE)
AgendaToday’s Objective
Bell WorkNotesVocabulary Puzzle What is PE and KE?Discussion on Worksheets
Bell WorkLooking at the items below, which
ones are Potential Energies?
A. Apple
B. Fire
C. Wood
D. Book on Shelf
E. Student running in gym
Bell WorkLooking at the items below, which
ones are Kinetic Energies?
A. Battery
B. Unlit Candle
C. Turned on Light bulb
D. Car in park on steep hill
E. Cold Pizza
EnergyWhat is Energy?How do you define Energy?
Class Examples
EnergyEnergy
- The ability to do work
-Be it Potential or Kinetic
-Be it Mechanical, Thermal, Chemical, Electrical, Electromagnetic, Nuclear
EnergyBased upon Two Primary Categories:
Potential Kinetic
EnergyKinetic
Energy of UseEnergy of MotionEnergy of NOW!
EnergyEureka #9 ClipKinetic Energy
EnergyPotential
Energy that is Stored.It is Potential
EnergyEureka #10 ClipPotential Energy
Bell WorkAt what point does
the diver have the most energy?
A. 1B. 2C. 3D. 4E. Not Sure
EnergyConservation of Energy.Energy is Neither Created or Destroyed
All Energy Must be Accounted For!
It can only change form
Energy
EnergySecondary Categories:
MechanicalThermalChemicalElectricalElectromagneticNuclear
EnergySecond Category
Mechanical-Associated with motion or position of object
-K or P-Every Monday Students use Mechanical Energy to move from class to class
EnergySecond Category
Thermal-Total KE of all particles in an object
-Ice Cream
EnergySecond Category
Chemical-Energy Stored in chemical bonds
-Candles
EnergySecond Category
Electrical-Moving electrical charges (electrons)
-Power to run E Devices
EnergySecond Category
Electromagnetic Energy (Radiation)
-Energy travels in Waves
-UV, IR, Microwaves
EnergySecond Category
Nuclear Energy-Stored in Nucleus of Atom
-Fission vs. Fusion-Sun, Stars, Powerplants
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkWhat type of Energy
does this object represent best?(1)
A. MechanicalB. ThermalC. ChemicalD. ElectricalE. ElectromagneticF. Nuclear
Bell WorkPlease put the items below into two
categories
(You choose the grouping)
Hydroelectric Oil Coal
Petroleum Biodiesel Gas
Wind Turbine Biomass Solar
Energy Terms
Renewable Energy
Energy sources that can be replaced, or replenished.
Energy Terms
Hydroelectric-
Electricity being made by hydro-water
Energy Terms
BiomassWood/Forests-Energy stored in trees in the carbon chemical bonds. Energy is old sunlight!
Extra-(maple syrup)
Energy Terms
Photovoltaic-
Electricity being made by converting Sunlight/Visible Light.
Solar Panels
Energy Terms
Tidal Turbine-
Energy production from the movement of ocean tides
Energy Terms
Wave Turbine-
Electricity produced by the movement of waves.
Energy Terms
Bio-fuels
Bioethanol
Biodiesel-
Fuel made from vegetables and grain
Energy Terms
Wind Turbine-
Electricity produced from the conversion of wind.
Energy Terms
Non-Renewable
Energy sources that once used, are non replaceable.
Energy Terms
Fossil FuelsAncient Stored SunlightCoal, Oil, Natural GasConsidered the Catalyst for Accelerated Global Warming (Climate Change)
Energy TermsCoal-
Energy Source made of preserved swamp ecosystems. Water/Mud preserved. Largest world-wide energy source for producing electricity
Energy Terms
Oil-Petroleum
Naturally occurring liquid found in Earth, comprised of ancient Zooplankton and Algae, hydrocarbons(oceans)
Energy Terms
Natural Gas
-Source of energy from swamps, marshes and landfills. Ancient to recent. Bondies Island
Energy Terms
Nuclear Power Plants
-Energy produced by splitting atoms and using the heat to make steam and spin turbines
Energy Terms
Unsure?!
These energy sources have potential to be either renewable or non-renewable
Homework
Hydrogen
-Energy stored in the attractive bonds of Hydrogen gas. H2 want to be in a water state.
Energy TermsNissan Leaf Commercial
http://www.youtube.com/watch?v=BNeEVkhTutY
Energy Term
Conservation of energy-
Law- Energy can neither be destroyed or created. All energy must be accounted for
Energy Terms
Temperature-Average kinetic energy KE of the individual particle
Thermal EnergyTotal amount of Kinetic Energy from Particles. As Kinetic Energy of particles increases, so does the Thermal energy.(Heat Energy) The particles move faster.
A
B
Energy TransferHeat-Movement of Thermal energy from a substance at a higher temperature to another at a lower temperature
Energy Transfer
Conduction-Transfer of Thermal Energy, without particles moving. Transfer by touching, Direct Contact
Transfer of EnergyConvection-
The transfer of energy by movement of Fluids. Earths mantle as well as water in a pot on the stove.
Energy Transfer
Radiation-Transfer of energy by or through EM Waves (Electromagnetic). Sun’s rays, hot lamps, tanning salon.
Transfer of Energy
All three in action!
Camp Fire!
Lava Lamp!
All 5 Phases/StatesSolid, Liquid, Gas,
Plasma, Bose Einstein
All Based upon the Amount of KE
All 5 Phases
Phase Changes
Temperature ConversionsAbsolute Water Water Zero
Freezes Boils
F -460 32 212
C –273 0 100
K 0 273 373
Bell Work #1How would you
Describe a Solid? Packed together tightly in relatively fixed positions. Can Vibrate!
Bell Work #2How would you Describe a Gas?
Moving so fast that they do not stay close to one another. Expand to fill space!
Bell Work #3How would you
Describe a Liquid? Particles held together, but not so tightly that they can’t move past one another. No Shape, but Volume!
Energy Terms Insulator-
Nature of material and it’s particles is resistant to absorbing Kinetic Energy
Energy TermsConductor-
Nature of material and it’s particles transfers Kinetic Energy Easily!
top related