Heat and Temperature.

Slides:

Advertisements

Similar presentations

Heat A Form of Energy.

Advertisements

What is Thermal Energy?.

Understanding Heat Transfer: Conduction, Convection and Radiation

How does Heat Energy transfer from one substance to another?

IPC Notes: Heat Transfer

A MEMS Science Production  Heat is energy that flows from one object to another.  3 types of heat transfer:  Conduction, Convection, Radiation.

Chapter 6 Thermal Energy. 6 – 1 Temperature and Thermal Energy.

Heat and Heat Technology. ____ is a measure of the average kinetic energy of the particles in an object. Temperature.

(c) McGraw Hill Ryerson Temperature Thermal Energy, and Heat The kinetic molecular theory explains that all matter is made up of tiny particles.

< BackNext >PreviewMain Section 1 Temperature What Is Temperature? Temperature is a measure of the average kinetic energy of the particles in an object.

Heat and Temperature. Temperature A measure of average kinetic energy of the molecules in a substance. In open air water cannot reach temperatures above.

Chapter 11 Whew! It's Hot!. Temperature and thermal energy.

10.1 Temperature, Thermal Energy, and Heat The kinetic molecular theory explains that all matter is made up of tiny particles.  These atoms and molecules.

Conduction, Convection, Radiation, oh my!!. Conduction –Involves objects in direct contact –2 objects in contact are at unequal temperature –Example:

Bellringer The three pictures all show examples of energy transfer. Answer the questions about what happens in each picture, and identify how the heat.

Heat Transfer Chapter 4. Three Types of Heat Transfer Conduction Convection Radiation Heat always travels from areas that are warmer to areas that are.

Temperature and Heat   Temperature and Thermometers   Is it hot or cold?   Mercury vs. alcohol Expansion or contraction of a material   Electrical.

Chapter 6. Temperature related to the average kinetic energy of an object’s atoms or molecules Thermal energy the sum of kinetic & potential energy of.

HEAT TRANSFER-CONDUCTION CONVECTION AND RADIATION.

Conduction, Convection, Radiation. Conduction Transfer of heat by direct contact. Heat flows from the warmer object to the colder object. Solids are better.

Activator: Why is the sun important? How does the heat get from this big, bright, ball in the sky to us?

Thermal Energy. Warm Up: To shape metal into a horseshoe, the metal is heated in a fire. Why will a horseshoe bend when it’s very hot, but not after it.

Chapter 3.4 Notes Thermal Rates.  The amount of heat that is transferred per unit time is the heat flow rate  Equation for heat flow rate = heat / time.

CHAPTER 6 THERMAL ENERGY. PS 7 a-c 1. I can illustrate and explain the addition and subtraction of heat on the motion of molecules. 2. I can distinguish.

Thermal and Chemical Energy. Thermal Energy Thermal Energy Thermal energy is kinetic energy because molecules are in motion. Temperature Temperature =

Transfer of Energy. How heat (energy) moves. What does “Transfer of Energy” mean?

Energy Transfer Methods of energy Transfer Three ways energy is transferred: 1. Conduction- occurs between objects in direct contact. a. Objects.

Heat Thermal Energy.

Thermal Energy 11/1/2011. What is thermal energy? Thermal energy is also known as heat and is the kinetic energy of all the molecules in a material. If.

Activator Define heat in your own words.. Heat Transfer SPS7. b. Investigate molecular motion as it relates to thermal energy changes in terms of conduction,

Q of D Heat & Energy Transfer.  1. If your hand touches a hot frying pan, why does your hand feel hotter?  A. heat goes into your hand  B. heat leaves.

Thermal Energy Chapter 6 Molecules and Motion The motion of molecules produces heat The more motion, the more heat is generated.

Conduction Heat transfer in solids (contact heating)

Chapter 5 – Thermal Energy

Thermal Energy Transfer

Heat and Temperature.

Temperature and Thermal Energy

Transferrring Energy Unit 3 – Topic 6.

Understanding Heat Transfer, Conduction, Convection and Radiation

Understanding Heat Transfer: Conduction, Convection and Radiation

Jeopardy Final Jeopardy Heat Transfer 1 Heat Transfer 2 Conductors

Radiation Transfer of heat energy by electromagnetic waves

Thermal Energy and Heat

Chapter 6 Thermal Energy

Chapter 10 Review Start.

Temperature and Heat Transfers

Understanding Heat Transfer, Conduction, Convection and Radiation

Vocabulary Week 4.

Thermal Energy Transfer

Thermal Energy, Heat, and Temperature

Heat Transfer and Molecular Motion

Introduction: Transfer of Heat

Conduction, Convection, and Radiation

Heat Transfer and Molecular Motion

Unit 3 - Energy Learning Target 3.4 – Define Temperature and explain how thermal energy is transferred (conduction, convection, & radiation)

Heat Transfer Science Vocabulary

Heat Transfer and Molecular Motion

Heat and Heat Technology

Understanding Heat Transfer: Conduction, Convection and Radiation

Temperature Is a property of an object which determines the direction of net heat flow when an object is placed in contact with some other object. Heat.

All matter is made up of molecules and atoms

Energy 7a. Designing a diagram, model or analogy to show or describe the motion of molecules for a material in a warmer and cooler state. 7b. Explaining.

Transfer of Energy.

4.2 How Does Heat Move?.

Thermal Energy.

presented by Betsy Sanford 6th Grade Earth Science

Matter in Motion - all thing are made of tiny particles (atoms)

Environmental Science

Presentation transcript:

Heat and Temperature

An atomic crystal lattice of table salt.

The red dots are atoms and the black bands represent chemical bonds. Misconception Warning: Remember, bonds are attractions and aren’t physical objects.

Molecules Move. All molecules have kinetic energy. This kinetic energy can be in the form of: Vibrational energy. Rotational energy. Translational energy where the entire molecule has motion.

The basic forms of kinetic energy of molecules The basic forms of kinetic energy of molecules. (A) Translational motion is the motion of a molecule as a whole moving from place to place. (B) Rotational motion is the motion of a turning molecule. (C) Vibrational motion is the back-and-forth movement of a vibrating molecule.

Chemical bonds are electrical attractions.

Explain this!

Why do power lines sag? Why do bridges have gaps? Why do sidewalks have gaps?

Heating and cooling a solid

Refrigerators, Air Conditioners, Heat Pumps.

Temperature Scales.

Temperature and Heat are different.

What has more heat (or heat energy)? A. An iceberg or B. A burning match

Heat involves temperature AND mass!!! The Iceberg. Why? Because an iceberg is much bigger and has more total molecular vibrations than the small match. Heat involves temperature AND mass!!!

Conduction - heat transfer through contact.

Some materials are good conductors while others are good insulators. Conductors transfer energy very efficiently. Insulators transfer energy very inefficiently, This is why wood toilet seats are much more comfortable during the winter than metal ones….OUCH!

This is fiberglass insulation This is fiberglass insulation. It keeps hot air out of your house during the summer. It keeps warm air inside your house during the winter.

Convection – fluids that are heated become less dense and will rise

Radiation – electromagnetic (EM) waves travel through empty space Radiation – electromagnetic (EM) waves travel through empty space. Everything with temperature releases EM waves.

Sources Bloomfield, How Things Work. Tillery, Physical Science.