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