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# Welcome to Science 71 - PowerPoint PPT Presentation

Welcome to Science 71. November , 2012 Day 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.

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### Welcome to Science 71

November , 2012

Day 56

Vocabulary Puzzle

• 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)

• Today’s Objective

• PE vs KE (Conservation of Energy)

• Thermal vs Temperature

• Bell Work

• Interviews

Conversion of energy

-When energy is changed from one form to another.

MechanicalElectricalElectromagnetic

Conservation of energy

-Take account of All Energy, Can Not be created or Destroyed

-Honda Commercial

Rube Goldberg

Conservation of energy-

Law-Energy can neither be destroyed or created. All energy must be accounted for

D

C

E

KE 1

PE 2

B

A

What is the Potential Energy of Ball at point B?

1 N

2 N

3 N

4 N

None above

And Point E?

• Temperature- Average kinetic energy KE of the individual particle

• Thermal Energy

• Total amount of Kinetic Energy from ALL Particles.

Thermal Energy

• Which object has more thermal energy?

A

B

Could you please put these states of matter in order from lowest energy to highest?

Solid

Gas

Plasma

Bose-Einstein Condensate

Liquid

Could you please put these states of matter in order according to the picture?

Solid

Gas

Liquid

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

• Solid, Liquid, Gas, Plasma, BoseEinstein

• All Based upon the Amount of KE

There are Three Main States of Matter:

• Solid

• Liquid

• Gas

• However there are many states currently.

Solid

• Particles arranged in definite order

• Vibrate

• Close together

Liquid

• Particles arranged in Random order

• Slide past, attaching and releasing

• Close together

Gas

• Particles not arranged.

• Scattered, Random

• Fast

Other States:

• Plasma-Lightening

• Excited/Ionized Gases

• 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)

Solid

Liquid

Gas

Could you please put these states of matter in order from lowest energy to highest?

Solid

Gas

Plasma

Bose-Einstein Condensate

Liquid

Could you please put these states of matter in order according to the picture?

Solid

Gas

Liquid

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

Absolute 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!

• Temperature- Average kinetic energy KE of the individual particle

• Total amount of Kinetic Energy from Particles. As Kinetic Energy of particles increases, so does the Thermal energy.(Heat Energy) The particles move faster.

Heat-

Movement of Thermal energy from a substance at a higher temperature to another at a lower temperature

Conduction-

Transfer of Thermal Energy, without particles moving. Transfer by touching, Direct Contact

Convection-

The transfer of energy by movement of Fluids. Earths mantle as well as water in a pot on the stove.

Transfer of energy by or through EM Waves (Electromagnetic). Sun’s rays, hot lamps, tanning salon.

What form of Heat Transfer are we observing?

Conduction

Convection

How do you know?

All three in action!

Camp Fire!

Lava Lamp!

What is the best order for following the energy in this situation?

• IR>Sun>Pot>Hand>Water

• Sun>Pot>Water>Hand>IR

• Sun>IR>Pot>Water>Hand

• Hand>Pot>IR>Water>Sun

• Insulator-Nature of material and it’s particles is resistant to absorbing Kinetic Energy

• Conductor-Nature of material and it’s particles transfers Kinetic Energy Easily!

Hydrogen

-Energy stored in the attractive bonds of Hydrogen gas. H2 want to be in a water state.

Conservation of energy

Honda Commercial

Rube Goldberg

• Homework

• Layer work

• (Concept Layer)

• DUE 11-13 / 11-16

Look at worksheet C3 and Page 155

• Temperature- Average kinetic energy KE of the individual particle

Which cup has the most Thermal energy, assuming that all cups are at the same temperature?

The one with the least amount of Cocoa

The one with the largest amount of Cocoa

All have the same amount of Energy

Not sure/Do not understand

Heat-

Movement of Thermal energy from a substance at a higher temperature to another at a lower temperature

Bell Work forms we can observe.

What type of Energy does this object represent best?(1)

• Mechanical

• Thermal

• Chemical

• Electrical

• Electromagnetic

• Nuclear

Bell Work forms we can observe.

What type of Energy does this object represent best?(1)

• Mechanical

• Thermal

• Chemical

• Electrical

• Electromagnetic

• Nuclear

Bell Work forms we can observe.

What type of Energy does this object represent best?(1)

• Mechanical

• Thermal

• Chemical

• Electrical

• Electromagnetic

• Nuclear

Temperature Scale forms we can observe.