Heat Transfer! CH22 Physics (B) Winter, 2010-2011.

Slides:

Advertisements

Similar presentations

Advertisements

Conduction, Convection, and Radiation EQ: What are the three ways that heat energy can be transferred? *Answer this as we proceed through the presentation.

Thermal Energy. 1.Thermal Energy is the vibration or movement of atoms and molecules. 2.All matter has thermal energy because the atoms are always moving.

THERMAL ENERGY AND HEAT Jennefer Cardenas. Objectives Students will be able to identify and know difference between THERMAL ENERGY, TEMPERATURE, and HEAT.

Law of Conservation of Energy

Energy Transfer Chapter 10.2.

Understanding Heat Transfer: Conduction, Convection and Radiation

Chapter 22 Heat Transfer.

Review of Layers of the Atmosphere

Science Chapter 1 Section 3: Convection and the Mantle

Chapter 14.2 – Energy Transfer

Thermal Energy The energy of moving particles in matter. The hotter the particles are, the more thermal energy they produce.

Thermal Energy and Heat. Temperature The measure of how HOT or COLD and object is.

Transfer of Energy

Transfer of Energy Energy Transfer Energy is transferred from hotter object to colder object Examples? –Cooking pasta –Making ice –Making popcorn –Roasting.

Thermal Energy and Heat

Methods of Energy Transfer

Energy transfer. Climatic Interactions The sun provides and transfers currents of energy over the earth surface. RAYS of energy Are the Sun’s rays Heating.

Conduction, Convection, and Radiation. Heat Energy Energy is what makes things happen. All materials are made of tiny particles called molecules. Molecules.

Chapter Eleven: Heat 11.1 Heat 11.2 Heat Transfer.

Heat Transfer Conduction, Convection, & Radiation…oh my!!

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

Chapter 2 Weather Factors Section 2 Heat Transfer.

Solar Energy Heat and Light. Energy Can take many different forms –____________ –Heat –____________.

Seconds Left: List & describe the three types of heat transfer.

Understanding Heat Transfer: Conduction, Convection and Radiation

ENTRY TASK Get your notebooks Pencil Orange highlighter Glue stick.

Convection, Conduction, or Radiation I6B TEK I6B – investigate and demonstrate the movement of heat through solids, liquids, and gases by convection, conduction,

Ch Energy Transfer Kinetic Molecular Theory “Kinetic” = moving “Molecular” = all matter is made up of atoms and molecules So all matter is made up.

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

THERMAL ENERGY TRANSFER NOTES. THERMAL ENERGY Total amount of energy in an object’s moving molecules. Heat--flow of thermal energy from a warmer object.

Ch Energy II. Thermal Energy  Temperature  Thermal Energy  Heat Transfer.

4/21/16 4/22/16 In todays lecture there are 7 questions You will answer the 7 questions on a piece of paper. I will collect at the end of the period for.

Types of HEAT Energy Transfers CONDUCTION Objects are in direct contact. Heat energy transfers when particles collide or objects in contact are TOUCHING.

Standards 3: Thermal Energy How Heat Moves  How heat energy transfers through solid.  By direct contact from HOT objects to COLD objects.

Convection Currents Heat is always transferred from warmer substance to a cooler substance. Write down some examples of this concept:

* Materials that allow heat, electricity, or sound waves to pass through them.

Understanding Heat Transfer: Conduction, Convection and Radiation

Thermal Energy Transfer

Conduction Convection Radiation

5.2 Part 2 Heat Transfer.

Understanding Heat Transfer: Conduction, Convection and Radiation

Understanding Heat Transfer: Conduction, Convection and Radiation

Jeopardy Final Jeopardy Heat Transfer 1 Heat Transfer 2 Conductors

Graphic Organizer Heat Thermal energy Conduction Convection Radiation

Heat Transfer Conduction Convection Radiation.

Temperature and Heat.

HEAT TRANSFER HEAT IS TRANSFERRED FROM A HOT RFEGION TO A COLD REGION.

Understanding Heat Transfer, Conduction, Convection and Radiation

The Transfer of Heat Heat is transferred by conduction, convection, and radiation.

Vocabulary Week 4.

Thermal Energy Transfer

Heat Transfer Unit 11: Forces & Energy.

Ch. 10 Thermal Energy Sec. 2 Heat.

Understanding Heat Transfer: Conduction, Convection and Radiation

Conduction, Convection, and Radiation

THERMAL ENERGY TRANSFER

Thermodynamics.

What is the first thing you think of when you think of “radiation?”

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

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.

Conduction, Convection, and Radiation

Convection Currents and the Mantle

Write down some examples of this concept:

Energy Flow in the Earth System

Understanding Heat Transfer: Conduction, Convection and Radiation

Chapter Eleven: Heat 11.1 Heat 11.2 Heat Transfer.

Presentation transcript:

Heat Transfer! CH22 Physics (B) Winter,

What is Heat Transfer? Heat Transfer: The flow of heat energy from a hot body to a cold body To answer that, let’s think about how you can get to school? (three ways or “modes”) – Walk/Ride Bike – Drive – Bus Heat Energy is like you, and can travel in three ways or “modes” – Conduction – Convection – Radiation 2

Heat Transfer: Conduction Conduction: The mode to transfer heat energy where two objects are in direct contact with each other Common in solids Requires presence of matter Must have DIRECT CONTACT 3

Heat Transfer: Conduction Solid Metals are good conductors: materials that flow heat energy well Plastics/Rubber are good insulators: materials that DO NOT flow heat energy well EXAMPLE: Do your feet feel colder on tile than on carpet? Why? EXAMPLE: If you hold one end of a metal rod against ice, the end in your hand will soon become cold. Does cold flow from the ice to your hand? 4

Heat Transfer: Convection Convection: The mode to transfer heat energy where there is CIRCULAR movement of fluids caused by their different densities at different temperatures Predominant in liquids & gases, and matter must be present, like conduction Can be forced or free convection: forced involves a fan/motor to move air/liquid 5

Heat Transfer: Convection Convection is present throughout your world: Earth’s atmosphere/weather: winds, ocean temps, ocean currents Earth’s core: convection currents driving Plate Tectonics In your home? Let’s make a list! 6

Heat Transfer: Radiation Radiation: The mode to transfer heat energy where electromagnetic waves carry the heat energy via light Matter is not required Solar energy utilizes radiation: Sun’s Light rays flow heat from sun to whatever object is in contact with the light rays Can see it in Fire, or radiators in old homes… 7

Heat Transfer Let’s Go Transfer Some Heat! 8