Thermal Energy Transfer

Slides:



Advertisements
Similar presentations
Electricity: Circuits Use your slates to answer the following questions.
Advertisements

Understanding Heat Transfer: Conduction, Convection and Radiation
Chemical Bonds of Compounds Conduction of Heat & Electricity.
Atomic Structure Atomic Structure Gateway To Technology®
Thermal Energy Transfer
STATIC ELECTRICITY I: Particle Model of Electricity
4 th Grade Core Knowledge Science : Electricity Quiz.
Copyright © Texas Education Agency, All rights reserved. 1 Electronics The Nature of Matter.
Oneone EEM-6A Objective: To conduct static electricity experiments in order to determine how charged objects affect each other. Energy Note: How do charged.
Electricity as Energy. In this activity you will: Learn about electricity as a form of energy.
Electric Charges Electricity Unit.
Science of Electricity. Electron Flow-Atomic Structure All matter is made of small particles called Atoms Atoms are formed by varying numbers of neutrons,
abcdefghijklmnopqrstuvwxyz Electrons (e - )are negatively charged particles of an atom. Protons are positively charged particles of an atom. Atoms usually.
Ch Electricity I. Electric Charge  Atoms and Charge  Conductors  Insulators  Static Electricity  Electric Discharge.
Simple Circuits & the Transfer of Electrical Energy
Oneone GTE-5A Objective: To conduct static electricity experiments in order to determine how charged objects affect each other. Energy Note: How do charged.
What is an Electric Current?. Everything has the same charge.
16.1 Electric Charge and Force I CAN: -UNDERSTAND THAT ELECTRICITY IS THE FLOW OF ELECTRONS THROUGH AN ELECTRIC CONDUCTOR -EXPLAIN THE CONCEPTS OF CURRENT,
Atomic Structures © 2011 Project Lead The Way, Inc.Magic of Electrons.
Draw a sketch of how YOU think electricity is made and how it gets to your house. Label as many things as you can. Write a short paragraph explaining.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding Copyright © Houghton Mifflin Harcourt Publishing Company.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding
Jeopardy Final Jeopardy Atoms Bonding I Bonding II $100 $100 $100 $100
Heat Transfer.
Conductors are materials in which electrons can move easily.
Atomic Structures Magic of Electrons © 2011 Project Lead The Way, Inc.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding
Structure of the Atom.
Atomic Structure Atomic Structure Gateway To Technology®
Electrostatics (Static Electricity)
Conductors vs. Insulators
DOS- Monday
If atoms start out as neutral, how do we know which material becomes positively charged and which material becomes negatively charged? Truemper 2016.
Atoms and Elements.
Lesson Aims To be able to explain conduction in terms of the particle model To explain that in general metals are good conductors. To describe how trapped.
Atomic Structure Atomic Structure Gateway To Technology®
What are conductors and insulators?
Ch. 2 Matter Earth Science.
Unit 3 Lesson 4 Ionic, Covalent, and Metallic Bonding
Properties of Matter Matter is anything that is made of atoms
Elements, Atoms and Compounds
Atomic Structures Magic of Electrons © 2011 Project Lead The Way, Inc.
2.1 – Matter all objects are made of matter
Controlling the flow of Electricity
Unit 9 Introduction to Electricity (Filled In)
Warm Up #10 Which particles in an atom have electric charges?
What are charges and how do they behave?
2.1 – Matter.
STATIC ELECTRICITY: A Particle Model of Electricity
8th Grade Chemistry Word Wall
ELECTRICITY.
Electric Charges & Current
CHAPTER 1 ATOMIC STRUCTURE
Topic: Structure of an Atom
What is electrical charge?
Electronic Fundamental Muhammad Zahid
Electric Charge Unit 11 Electrostatics.
Essential Question: How do electric charges exert force on each other?
Chapter 2 Matter.
Electricity.
STATIC ELECTRICITY: A Particle Model of Electricity
Topic: Structure of an Atom
The ability to be stretched into a thin wire.
Electricity.
ELECTRIC ITY.
Chemistry.
Methods of Charging S Explain attraction of neutral objects using the particle model of electricity. S Explain electrostatic phenomena.
Atomic Structures Magic of Electrons © 2011 Project Lead The Way, Inc.
Topic: Structure of an Atom
Static Electricity.
Presentation transcript:

Thermal Energy Transfer Conductors & Insulators

Essential Standard 6.P.3 Understand characteristics of energy transfer and interactions of matter and energy.

Clarifying Objective 6.P .3.3Explain the suitability of materials for use in technological design based on a response to heat (to include conduction, expansion, and contraction) and electrical energy (conductors and insulators).

Essential Questions What are examples of INSULATORS? What are examples of CONDUCTORS? How does electrical & thermal energy move through conductors? Why does electrical & thermal energy NOT move through INSULATORS?

Electrical Energy To understand how conductors & insulators work we have to understand atoms If you remember atoms are the smallest pieces of matter They make up everything except photons (which are part of an atom)

What is Electricity http://www.youtube.com/watch?v=ZAFW4zdXpbY

Atoms Atoms have a nucleus & an outer valence In the nucleus & outer valence atoms are composed of 3 things Protons- positively charged particles inside the nucleus Neutrons- particles that have no electric charge inside the nucleus

Atoms Electrons- negatively charged particles on the Outer Valance Atoms will usually have the same number (equal) of protons & electrons to balance themselves out Sometimes though there becomes more protons than electrons and then the atom becomes + charged

Excited Ions The outermost electrons can escape away from the atom when it slams into another atom When the electron escapes now the there are more protons than electrons and the atom has a + charge An atom that has a + charge is called an ion Because there are more protons + than electrons the atom gets excited and vibrates

Jumping Electrons When electrons escape it goes to the next atom This will cause the electron in the next atom to jump to a different atom

Jumping Electrons

Jumping Electrons = Electricity Transfer (Heat/Thermal Energy Transfer) When the electron has jumped atoms from one side to another it has passed electricity This is how we get our power/electricity in our houses

Essential Questions Get with a partner and answer… How does electrical & thermal energy move through conductors?

Conductors & Insulators Opposite Conductors are Insulators OPPOSITES from each other This means if a material is a good conductor it is a bad insulator If a material is a good insulator it is a bad conductor

Conductors http://www.youtube.com/watch?v=qUhxmXZwPmg 4:30-7:15

Conductors Conductors are solids that energy can travel through This could be thermal energy (heat) electrical energy or other energy There are good conductors & bad conductors

Good Conductors Good conductors are solids that have atoms that are very dense The more dense the atoms the better conductors they will be This is because the atoms are more tightly compacted together

Good Conductors Good conductors atoms are close enough to each other that the electrons can bounce from one atom to the next passing the heat or electricity

Bad Conductors Bad conductors of electricity & thermal energy exist in three different forms Gasses are bad conductors because the particles are so far apart from each other Liquids are bad conductors for the same reason Solids that are not dense are also bad conductors

Why are They Bad Conductors These are all bad conductors because the atom particles are not dense and they cant jump from atom to atom The worst kind of conductor is actually called an insulator

Insulators Insulators are materials used to keep heat & sound contained inside something Insulators keep heat inside something Insulators keep electricity inside something

Insulator http://www.youtube.com/watch?v=qUhxmXZwPmg 7:15-8:15

Essential Questions Get with a partner and answer… Why does electrical & thermal energy NOT move through INSULATORS?

Good Insulators Good insulators will NOT allow electrons to move from one end to another They trap the electrons keeping the heat or electricity inside something

What makes a Good Insulator Materials that have many different types of atoms make good insulators (Styrofoam cups) This is because the DIFFERENT types of atoms BOND together Now not only are the atoms are the same connected together but also those atoms are forming BONDS to other types of atoms

What makes a Good Insulator This forms a wall and does not allow the electrons to escape from one atom to the next If the electrons cant escape the neither the thermal energy or electrical energy can be transferred

Great Conductors Have to be solids Metals from the periodic table are the best because they are just one kind of atom & very dense Copper Aluminum Gold Silver People & Animals

Great Insulators Solid nonmetals that are NOT DENSE Styrofoam koozies Rubber Plastic Glass Ceramic/Porcelain Clothing

Essential Questions Get with a partner and answer… What are examples of INSULATORS? What are examples of CONDUCTORS?

EOG Questions Why are some coffee cups composed of ceramic material? A) Ceramic materials are conductors that limit heat transfer. B) Ceramic materials are insulators that limit heat transfer. C) Ceramic materials are conductors that aid heat transfer. D) Ceramic materials are insulators that aid heat transfer.

EOG Questions A worker for an electrical company is preparing to fix a power line. Why would he put on rubber gloves before working with any power lines? A) Rubber is a poor conductor of heat but a good conductor of electricity. B) Rubber is a good conductor of heat but a poor conductor of electricity. C) Rubber is a poor conductor of heat and electricity. D) Rubber is a good conductor of heat and electricity.