Welcome to Science 71
November , 2012Day 56
Skills Period
Vocabulary Puzzle
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
PE vs KE (Conservation of Energy)
Thermal vs TemperatureBell WorkGradesInterviews
Energy TermConversion of energy
-When energy is changed from one form to another.
MechanicalElectricalElectromagnetic
Energy TermConservation of energy
-Take account of All Energy, Can Not be created or Destroyed
-Honda Commercial
Rube Goldberg
Energy Term
Conservation of energy-
Law- Energy can neither be destroyed or created. All energy must be accounted for
Bell WorkWhat is the Potential Energy of Ball
at point B?
1. 1 N
2. 2 N
3. 3 N
4. 4 N
5. None above
And Point E?
KE 1 PE 2
A
C
B
D
E
Energy Terms
Temperature-Average kinetic energy KE of the individual particle
Energy TermsThermal EnergyTotal amount of Kinetic Energy from ALL Particles.
Thermal EnergyWhich object has more thermal energy?
A
B
Bell WorkCould you please put these states of
matter in order from lowest energy to highest?
A. Solid
B. Gas
C. Plasma
D. Bose-Einstein Condensate
E. Liquid
Bell WorkCould you please put these states of
matter in order according to the picture?
A. Solid
B. Gas
C. Liquid
Silly Putty What do you think will happen?
A the ball will bounce
B the ball will shatter
C the ball will stick to the ground
D Not sure
Superliquids
All 5 PhasesSolid, Liquid, Gas,
Plasma, Bose Einstein
All Based upon the Amount of KE
States of MatterThere are Three Main
States of Matter: Solid Liquid Gas
However there are many states currently.
States of MatterSolid Particles
arranged in definite order
Vibrate Close together
States of MatterLiquid Particles
arranged in Random order
Slide past, attaching and releasing
Close together
States of MatterGas Particles not
arranged. Scattered,
Random Fast Very Spread out
States of MatterOther States: Plasma-Lightening Excited/Ionized Gases
Other States of Matter Ordinary Temps
Liquid Crystal States (Digital Watch) Mlcls pnt sm direc Amorphous Solid (Glass, Rubber, Polystyrene) Magnetically-ordered States (moments aligned 2 dif ways)
Low Temps Superconductors (Cold Magnets –MRI) Superfluids (Climbing helium 3 or 6) Bose-Einstein Condensates (called “Fifth State” helium 4)
High Energy Plasma (ionized gas lightning, stars, sun) Quark-gluon Plasma (CERN 2000 Observe individual Quarks)
Proposed States Degenerate Matter (White dwarves and Neutron Stars) Supersolid (Solid with superfluid properties String-net liquid (atoms have the same spin, not normal) Rydberg Matter (condensation of excited atoms)
All 5 Phases
Other States of MatterSolid
Liquid
Gas
Phase Changes
Bell WorkCould you please put these states of
matter in order from lowest energy to highest?
A. Solid
B. Gas
C. Plasma
D. Bose-Einstein Condensate
E. Liquid
Bell WorkCould you please put these states of
matter in order according to the picture?
A. Solid
B. Gas
C. Liquid
Silly Putty What do you think will happen?
A the ball will bounce
B the ball will shatter
C the ball will stick to the ground
D Not sure
Superliquids
Temperature Scale
Temperature ConversionsAbsolute Water Water Zero
Freezes Boils
F -460 32 212
C –273 0 100
K 0 273 373
Compare this to a Number line as in Math!
Phase Changes
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.
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.
Bell WorkWhat form of Heat
Transfer are we observing?
A.Conduction
B.Convection
C.Radiation
How do you know?
Transfer of Energy
All three in action!
Camp Fire!
Lava Lamp!
Bell WorkWhat is the best order for following
the energy in this situation?1. IR>Sun>Pot>Hand>Water
2. Sun>Pot>Water>Hand>IR
3. Sun>IR>Pot>Water>Hand
4. Hand>Pot>IR>Water>Sun
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!
Homework
Hydrogen
-Energy stored in the attractive bonds of Hydrogen gas. H2 want to be in a water state.
Energy Term
Conservation of energy
Honda Commercial
Rube Goldberg
HomeworkHomeworkLayer work
(Concept Layer)DUE 11-13 / 11-16
Movie on States of Matter
Look at worksheet C3 and Page 155
Energy Terms
Temperature-Average kinetic energy KE of the individual particle
Temperature Scale
QuestionWhich cup has the most
Thermal energy, assuming that all cups are at the same temperature?
a. The one with the least amount of Cocoa
b. The one with the largest amount of Cocoa
c. All have the same amount of Energy
d. Not sure/Do not understand
Energy TransferHeat-Movement of Thermal energy from a substance at a higher temperature to another at a lower temperature
When addressing the movement of Energy, there are three main forms we can observe.
Radiation EM forms like IR, UV
Convection Movement of Heat in fluids Convection
Currents Conduction
Heat transfer by direct contact
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
Temperature Scale