Energy Transfers. Heat Transfer. Internal Energy. Going With The Flow! 5/12/17. à Thermal Energy. Q = mcdt Q =DU. U = N(1/2mv 2 )
|
|
- Derick Stone
- 6 years ago
- Views:
Transcription
1 Energy Transfers What Type of Energy Can be transformed into Thermal Energy? Heat Transfer à Thermal Energy Internal Energy What happens to the energy when it absorbed by the object? U = N(1/2mv 2 ) Where: U = Internal Energy N = Total number of molecules v = average velocity Going With The Flow! If two objects interact with different temperatures, heat will flow according to the following equation: If no work is done, the amount of heat that is transferred equals the change in an object s internal energy. Q =DU Q = mcdt 1
2 Methods Of Heat Transfer If heat is the transfer of energy, how is that energy transferred? Conduction Convection Radiation What Is It? Conduction Which Experiment(s) Demonstrates this method of heat transfer? In what direction does heat flow? Always moves high energy to low energy. Moves from a hot object to a cold object. Quantifying Conduction The rate of heat flow by conduction is dependent on the temperature difference, size and shape of the object, and the material from which the object is made. = ka T 1-T 2 l Where: A = Cross-sectional area l = distance between temperatures k = thermal conductivity Rate of Conduction Example A Styrofoam box used to keep drinks cold at a picnic has a cross-sectional area of 0.80 m 2 and a wall thickness of 2.0 cm. It is filled with ice, water, and cans of cola at 0 C. What is the rate of heat flow by conduction if the sand the cooler sits on makes the outside wall of the cooler 30 C? The thermal conductivity of Styrofoam is 0.01 W/m K. Info: A = 0.80 m 2 l = 0.02 m T 1 = 30 C T 2 = 0 C k = 0.01 W/m k = ka T 1-T 2 l = (0.01 W/m K)(0.80 m 2 ) = 12 Watts (303K-273K) 0.02 m 2
3 What Is It? Convection Everyday Phenomena Examples of convection are prevalent in the Earth Science. Which Experiment(s) Demonstrates this method of heat transfer? What Is It? Radiation Radiation All objects radiate energy. Produce a mixture of different wavelengths. Peak Wavelength Which Experiment(s) Demonstrates this method of heat transfer? l peak = x 10-3 mk T What s your peak wavelength? 98.6 F = 310 K l peak = 9.3x10-6 m 3
4 Living things are typically in the infrared region. Infrared and More So is the Earth Almost 100% radiated as Infrared. Not everything is infrared on Earth though Radioactive decay is also a form of radiation. How Do You Warm Up with Radiation? The amount you absorb is more than what you emit. Opposite --> Cool off Same --> No change What color and finish would you want an object to be to be a good absorber? Flat Black! What color would you want for an object to be a good emitter? Black! What would be the worst absorber/emitter? Reflective White or silver The best absorbers are also the best emitters! Quantifying Radiation The rate of heat transfer by radiation is dependent on the object s area, surface temperature, and of the object, its temperature, and the nature of its surface. = esat 4 Where: A = Area of the object s = 5.67 x 10-8 W/m 2 K 4 e = emissivity The emissivity is characteristic of a material and is a dimensionless number between 0 and 1. Shiny surfaces have an e close to 0. Black and dark objects have an e close to 1. You Do The Math! When an object emits radiation, it is also interacting with its surroundings. If the surrounding temperature is T 2, then the net flow of heat energy by radiation can be expressed as the following: = esa(t 14 - T 24 ) The human body has an average total surface area of 1.20 m 2 and a surface temperature of 30 C. What is the rate of heat loss if the emissivity of the human body is essentially 1? = (1)(1.20)(5.67 x 10-8 )(303 K) 4 If the surroundings are 20 C, what is the net rate heat loss? = 574 W = 72 W 4
5 Which Is More Effective? Let s Model Two Solids Conduction Convection Radiation Can your model explain why these feel different two you even though they are the same temperature? Conductors and Insulators How Will A Gas and Liquid Compare? Some materials transfer heat by conduction better than others. Which type of transfer? Thermal Conductivity (k) Conductors have a large k value. Metal is a good conductor! Insulators have a small k value. Wood is a good insulator! 5
6 Can Our Model Explain It? We Add 100 J of thermal energy to both Object A and Object B which both have a mass of 100-grams. Object A increases its temperature by 10 degrees while Object B increases its temperature by on 5 degrees. Q = mcδt Object A has a lower c than Object B! Why? Practice and Homework! Section Practice: 3, 21 Homework: 1, 6, 22, 23 A Practical Application Space Shuttle Thermal Protection System Good insulators that do not break down. Ceramic tiles HRSI can withstand temperatures between 1200 F F. LRSI can withstand temperatures between 700 F F. 6
Heat Transfer. Conduction, Convection, and Radiation. Review: Temperature
Heat Transfer Conduction, Convection, and Radiation Review: Temperature! Temperature is:! The quantity that tells how hot or cold something is compared with a standard! A measure of the average kinetic
More informationMechanisms of heat transfer
Lecture 4 Mechanisms of heat transfer Pre-reading: 17.7 Review Heat can be transferred from one object to another due to a temperature difference. The properties of many objects change with temperature:
More informationThe Kinetic Theory of Matter. Temperature. Temperature. Temperature. Temperature. Chapter 6 HEAT
The Kinetic Theory of Matter Hewitt/Lyons/Suchocki/Yeh Conceptual Integrated Science Chapter 6 HEAT Kinetic Theory of Matter: Matter is made up of tiny particles (atoms or molecules) that are always in
More informationExercises Conduction (pages ) 1. Define conduction. 2. What is a conductor?
Exercises 22.1 Conduction (pages 431 432) 1. Define conduction. 2. What is a conductor? 3. are the best conductors. 4. In conduction, between particles transfer thermal energy. 5. Is the following sentence
More informationTHERMODYNAMICS METHODS OF HEAT TRANSFER RADIATION
VISUAL PHYSICS ONLINE THERMODYNAMICS METHODS OF HEAT TRANSFER RADIATION Radiation is the energy transferred by electromagnetic waves mainly infrared (IR), visible and ultraviolet (UV). All materials radiate
More informationheat By cillian bryan and scott doyle
heat By cillian bryan and scott doyle What is heat Heat energy is the result of the movement of tiny particles called atoms molecules or ions in solids, liquids and gases. Heat energy can be transferred
More informationL 18 Thermodynamics [3] Heat flow. Conduction. Convection. Thermal Conductivity. heat conduction. Heat transfer
L 18 Thermodynamics [3] Heat transfer convection conduction emitters of seeing behind closed doors Greenhouse effect Heat Capacity How to boil water Heat flow HEAT the energy that flows from one system
More informationWork by Friction. A box slides 10 m across a surface. A frictional force of 20 N is acting on the box.
Work by Friction A box slides 10 m across a surface. A frictional force of 20 N is acting on the box. What is the work done by friction? What happened to this energy? Work by Friction A box slides 10 m
More informationDemonstrate understanding of aspects of heat
Demonstrate understanding of aspects of heat Heat Transfer Temperature - temperature is a measure of the average kinetic energy of the particles making up an object (measured in C or K) 0 K = -273 o C
More informationChapter 13 The Transfer of Heat
Chapter 13 The Transfer of Heat Transfer of heat from one point to another 1) Convection 2) Conduction 3) Radiation 13.1 Convection CONVECTION The process in which heat is carried from one place to another
More informationGeneral Physics (PHY 2130)
General Physics (PHY 2130) Lecture 34 Heat Heat transfer Conduction Convection Radiation http://www.physics.wayne.edu/~apetrov/phy2130/ Lightning Review Last lecture: 1. Thermal physics Heat. Specific
More informationBell Ringer. What are the formulas to obtain the force, acceleration, and mass? And corresponding units. F= ma M= f/a A= f/m
Bell Ringer What are the formulas to obtain the force, acceleration, and mass? And corresponding units. F= ma M= f/a A= f/m F= N M= kg A= m/s^2 What did we learn about the acceleration rate and gravitational
More informationPHYSICS 220. Lecture 25. Textbook Sections Lecture 25 Purdue University, Physics 220 1
PHYSICS 220 Lecture 25 Heat Transfer Textbook Sections 14.6 14.8 Lecture 25 Purdue University, Physics 220 1 Overview Last Lecture Heat is FLOW of energy Flow of energy may increase temperature Specific
More informationPhysics 231. Topic 13: Heat. Alex Brown Dec 1, MSU Physics 231 Fall
Physics 231 Topic 13: Heat Alex Brown Dec 1, 2015 MSU Physics 231 Fall 2015 1 8 th 10 pm correction for 3 rd exam 9 th 10 pm attitude survey (1% for participation) 10 th 10 pm concept test timed (50 min))
More informationChapter 14 Heat. Lecture PowerPoints. Chapter 14 Physics: Principles with Applications, 7 th edition Giancoli
Lecture PowerPoints Chapter 14 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching
More informationConduction is the transfer of heat by the direct contact of particles of matter.
Matter and Energy Chapter 9 energy flows from a material at a higher temperature to a material at a lower temperature. This process is called heat transfer. How is heat transferred from material to material,
More informationChapter 6. Heat is transferred from one place to another by three different processes
Chapter 6 Heat is transferred from one place to another by three different processes 6.1 How Heat is Transferred I. Conduction P Conduction is the transfer of energy through matter from particle to particle.
More informationThermal Energy. Chapter 6 2 Transferring Thermal Energy
Thermal Energy Chapter 6 2 Transferring Thermal Energy Objectives Compare and contrast conduction, convection, and radiation. Compare and contrast conductors and insulators. CLE 3202.2.3 Examine the applications
More informationTEMPERATURE. 8. Temperature and Heat 1
TEMPERATURE Heat is the energy that is transferred between objects because of a temperature difference Terms such as transfer of heat or heat flow from object A to object B simply means that the total
More informationChapter 1 Heating Processes
Chapter 1 Heating Processes Section 1.1 Heat and temperature Worked example: Try yourself 1.1.1 CALCULATING THE CHANGE IN INTERNAL ENERGY A student places a heating element and a paddle wheel apparatus
More information1. How much heat was needed to raise the bullet to its final temperature?
Name: Date: Use the following to answer question 1: A 0.0500-kg lead bullet of volume 5.00 10 6 m 3 at 20.0 C hits a block that is made of an ideal thermal insulator and comes to rest at its center. At
More informationSPH3U1 Lesson 03 Energy
THERMAL ENERGY AND LATENT HEAT LEARNING GOALS Students will learn: Heat changes the amount of thermal energy in an object Temperature is a measure of the average thermal energy in an object Heat capacity
More informationTemperature of body can be increased by doing work on it. Here W = E mgh = E internal
Heat (C19.1-6, 10) Temperature (T) is measure of average KE of all molecules Internal energy (or Thermal Energy) is sum of total energy of all molecules. Heat is transfer of IE from one body to another.
More informationPhysics 101: Lecture 26 Conduction, Convection, Radiation
Final Physics 101: Lecture 26 Conduction, Convection, Radiation Today s lecture will cover Textbook Chapter 14.4-14.9 Physics 101: Lecture 26, Pg 1 Review Heat is FLOW of energy Flow of energy may increase
More informationPHYSICS 231 INTRODUCTORY PHYSICS I
PHYSICS 231 INTRODUCTORY PHYSICS I Lecture 17 Heat: Q = Energy transferred due to microscopic contact Recap - Heat Transfer Heat can: Change temperature Q = mc!t c = specific heat For water: c= 1.0 cal/(g
More informationCERT Educational Series Heat Transfer
Student Lab Sheet Answer Key CERT Educational Series Heat Transfer Name Date: Are HEAT and TEMPERATURE the same thing? YES NO Heat and Temperature are not the same thing. They have different units. Heat
More informationChapter 11. Energy in Thermal Processes
Chapter 11 Energy in Thermal Processes Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the warmer decreases and the temperature of the cooler
More informationChapter 11. Energy in Thermal Processes
Chapter 11 Energy in Thermal Processes Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the warmer decreases and the temperature of the cooler
More informationM1. (a) range of speeds 1. moving in different directions accept random motion 1. internal energy 1. density = mass / volume 1. (d) / 0.
M. (a) range of speeds moving in different directions accept random motion (b) internal energy (c) density = mass / volume (d) 0.00254 / 0.04 0.8 accept 0.8 with no working shown for the 2 calculation
More information8.5 - Energy. Energy The property of an object or system that enables it to do work. Energy is measured in Joules (J).
Work Work The process of moving an object by applying a force. Work = Force x displacement. Work is measured in Joules (J) or Newton-meters (Nm). W = Fd Example: To prove his strength, a weightlifter pushes
More informationName... Class... Date...
Radiation and temperature Specification reference: P6.3 Black body radiation (physics only) Aims This is an activity that has been designed to help you improve your literacy skills. In this activity you
More informationCalorimetry: Problem Solving with Heat Exchanges (method 1)
Calorimetry: Problem Solving with Heat Exchanges (method 1) Main Concept: Conservation of Energy Q = 0 (sum of all heat flows into and out of system =0) Sign Convention: heat enters a system is + heat
More informationLecture 22. Temperature and Heat
Lecture 22 Temperature and Heat Today s Topics: 0 th Law of Thermodynamics Temperature Scales Thermometers Thermal Expansion Heat, Internal Energy and Work Heat Transfer Temperature and the Zeroth Law
More informationCPO Science Foundations of Physics. Unit 8, Chapter 26
CPO Science Foundations of Physics Unit 8, Chapter 26 Unit 8: Matter and Energy Chapter 26 Heat Transfer 26.1 Heat Conduction 26.2 Convection 26.3 Radiation Chapter 26 Objectives 1. Explain the relationship
More information* Defining Temperature * Temperature is proportional to the kinetic energy of atoms and molecules. * Temperature * Internal energy
* Defining Temperature * We associate temperature with how hot or cold an object feels. * Our sense of touch serves as a qualitative indicator of temperature. * Energy must be either added or removed from
More informationHeat can be transferred by. and by radiation Conduction
Heat can be transferred by conduction, by convection, and by radiation. The spontaneous transfer of heat is always from warmer objects to cooler objects. If several objects near one another have different
More information2,000-gram mass of water compared to a 1,000-gram mass.
11.2 Heat To change the temperature, you usually need to add or subtract energy. For example, when it s cold outside, you turn up the heat in your house or apartment and the temperature goes up. You know
More informationTemperature and Heat 4.1. Temperature depends on particle movement Energy flows from warmer to cooler objects. 4.3
Temperature and Heat NEW the BIG idea Heat is a flow of energy due to temperature differences. 4.1 Temperature depends on particle movement. 4.2 Energy flows from warmer to cooler objects. 4.3 The transfer
More informationChapter 16 Temperature and Heat
Chapter 16 Temperature and Heat 16-1 Temperature and the Zeroth Law of Thermodynamics Definition of heat: Heat is the energy transferred between objects because of a temperature difference. Objects are
More informationTemperature, Thermal Energy, and Heat
Temperature, Thermal Energy, and Heat Textbook pages 424 435 Section 10.1 Summary Before You Read We often use the terms heat and temperature interchangeably. Do you think they mean the same thing? Explain
More informationEnergy, Temperature, & Heat. Energy, Temperature, & Heat. Temperature Scales 1/17/11
Energy, Temperature, & Heat Energy is the ability to do work (push, pull, lift) on some form of matter. Chapter 2 Potential energy is the potential for work (mass x gravity x height) Kinetic energy is
More informationBlack Body Radiation and Planck's Quantum Hypothesis
Section 3: Black Body Radiation and Planck's Quantum Hypothesis Definitions Opaque materials: materials in which no light is allowed to pass through; all light is either absorbed or reflected. Radiation:
More informationTemperature. Temperature Scales. Temperature (cont d) CHAPTER 14 Heat and Temperature
Temperature CHAPTER 14 Heat and Temperature The temperature of a substance is proportional to the average kinetic energy of the substance s particles. As the average kinetic energy of the particles in
More informationAssess why particular characteristics are necessary for effective conduction KEY POINTS
Conduction LEARNING OBJECTIVES Assess why particular characteristics are necessary for effective conduction KEY POINTS On a microscopic scale, conduction occurs as rapidly moving or vibrating atoms and
More informationTopic 5 Practice Test
Base your answers to questions 1 and 2 on the diagram below, which represents the greenhouse effect in which heat energy is trapped in Earth's atmosphere 1. The Earth surface that best absorbs short-wave
More informationChapter 17. Work, Heat, and the First Law of Thermodynamics Topics: Chapter Goal: Conservation of Energy Work in Ideal-Gas Processes
Chapter 17. Work, Heat, and the First Law of Thermodynamics This false-color thermal image (an infrared photo) shows where heat energy is escaping from a house. In this chapter we investigate the connection
More informationPhysics 111. Lecture 36 (Walker: ) Heat Capacity & Specific Heat Heat Transfer. May 1, Quiz (Chaps. 14 & 16) on Wed.
Physics 111 Lecture 36 (Walker: 16.4-6) Heat Capacity & Specific Heat Heat Transfer May 1, 2009 Quiz (Chaps. 14 & 16) on Wed. May 6 Lecture 36 1/26 Heat Capacity (C) The heat capacity C of an object is
More informationBroughton High School. Thermal Energy. Physical Science Workbook Chapter 6 Thermal Energy 2016 Mr. Davis
1 Thermal Energy Vocabulary for Chapter 6 Thermal Energy Broughton High School Physical Science Vocabulary No.# Term Page # Definition 2 1. Degrees 2. Higher Specific Heat 3. Heat of Vaporization 4. Radiation
More informationSection 1: The Science of Energy¹
SECTION1: THE SCIENCE OF ENERGY Section 1: The Science of Energy¹ What Is Energy? Energy is the ability to do work or the ability to make a change. Everything that happens in the world involves the exchange
More informationConduction, Convection, & Radiation
Conduction, Convection, & Radiation Vanderbilt Student Volunteers for Science 2018-2019 VINSE/VSVS Rural I. Introduction- What is temperature? What is heat? Ask: what is temperature? scientific measure
More informationQuestion. Woodstoves. Thermal Energy. Heat. Burning Wood. Chemical Forces. Which is more effective at heating a room:
Question Which is more effective at heating a room: 1. a black woodstove 2. a white woodstove Thermal Energy is disordered energy is the kinetic and potential energies of atoms gives rise to temperature
More informationChapter 10 Test Form B
Chapter 10 Test Form A 1. B 2. A 3. A 4. B 5. D 6. B 7. B 8. A 9. A 10. A 11. B 12. D 13. A 14. C 15. No, heat and cold do not flow between objects. Energy transferred between objects changes the temperature
More informationEnergy in Thermal Processes. Heat and Internal Energy
Energy in Thermal Processes Heat and Internal Energy Internal energy U: associated with the microscopic components of a system: kinetic and potential energies. The larger the number of internal degrees
More informationLecture 2: Zero law of thermodynamics
Lecture 2: Zero law of thermodynamics 1. Thermometers and temperature scales 2. Thermal contact and thermal equilibrium 3. Zeroth law of thermodynamics 1. Thermometers and Temperature scales We often associate
More informationPhysics 221, March 22
Physics 221, March 22 Key Concepts: Temperature and pressure Heat Regulating heat flow Thermal properties of matter Temperature The average kinetic energy of the random motion of the molecules of a substance
More informationScience In Action 7 Heat and Temperature Section Quiz
Section 2 Heat affects Matter in different ways 2.1 States of Matter and The Particle Model 1. Water has a distinct characteristic that sets it apart from other liquids on Earth. Water expands when it
More informationTemperature and Heat. Chapter 17. PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman
Chapter 17 Temperature and Heat PowerPoint Lectures for University Physics, Twelfth Edition Hugh D. Young and Roger A. Freedman Lectures by James Pazun Goals for Chapter 17 To delineate the three different
More informationThermal Effects. IGCSE Physics
Thermal Effects IGCSE Physics Starter What is the difference between heat and temperature? What unit is thermal energy measured in? And what does it depend on? In which direction does heat flow? Heat (Thermal
More informationConduction, Convection, and Radiation
Conduction Thermal energy is transferred from place to place by conduction, convection, and radiation. Conduction is the transfer of thermal energy by collisions between particles in matter. Conduction
More informationPHYSICS 149: Lecture 26
PHYSICS 149: Lecture 26 Chapter 14: Heat 14.1 Internal Energy 14.2 Heat 14.3 Heat Capacity and Specific Heat 14.5 Phase Transitions 14.6 Thermal Conduction 14.7 Thermal Convection 14.8 Thermal Radiation
More informationThermal Energy. Thermal Energy is the TRANSFER of kinetic energy between two objects that are at different temperatures.
Thermal Energy Thermal Energy is the TRANSFER of kinetic energy between two objects that are at different temperatures. And remember: heat will always transfer from a warm object to a cold object. HEAT
More informationLECTURE NOTES. Heat Transfer. III B. Tech II Semester (JNTUA-R15) CHADALAWADA RAMANAMMA ENGINEERING COLLEGE (AUTONOMOUS)
LECTURE NOTES on Heat Transfer III B. Tech II Semester (JNTUA-R15) Mr. K.SURESH, Assistant Professor CHADALAWADA RAMANAMMA ENGINEERING COLLEGE (AUTONOMOUS) Chadalawada Nagar, Renigunta Road, Tirupati 517
More informationChapter 5 Light and Matter: Reading Messages from the Cosmos. 5.1 Light in Everyday Life. How do we experience light?
Chapter 5 Light and Matter: Reading Messages from the Cosmos 5.1 Light in Everyday Life Our goals for learning: How do we experience light? How do light and matter interact? How do we experience light?
More informationLecture 6. Solar vs. terrestrial radiation and the bare rock climate model.
Lecture 6 Solar vs. terrestrial radiation and the bare rock climate model. Radiation Controls energy balance of Earth Is all around us all the time. Can be labeled by its source (solar, terrestrial) or
More informationChapter 11 Thermal Transport
Chapter 11 Thermal Transport GOALS When you have mastered the contents of this chapter, you will be able to achieve the following goals: Definitions Define the following terms, and use them in an operational
More informationLecture #8. Light-matter interaction. Kirchoff s laws
1 Lecture #8 Light-matter interaction Kirchoff s laws 2 Line emission/absorption Atoms: release and absorb photons with a predefined set of energies (discrete). The number of protons determine the chemical
More informationHeat Transfer. Phys101 Lectures 33, 34. Key points: Heat as Energy Transfer Specific Heat Heat Transfer: Conduction, Convection, Radiation.
Phys101 Lectures 33, 34 Heat Transfer Key points: Heat as Energy Transfer Specific Heat Heat Transfer: Conduction, Convection, Radiation. Ref: 14-1,2,3,4,6,7,8. Page 1 Heat as Energy Transfer We often
More informationChapter 11. Important to distinguish between them. They are not interchangeable. They mean very different things when used in physics Internal Energy
Chapter 11 Energy in Thermal Processes Energy Transfer When two objects of different temperatures are placed in thermal contact, the temperature of the warmer decreases and the temperature of the cooler
More informationChapter 5: Light and Matter: Reading Messages from the Cosmos
Chapter 5 Lecture Chapter 5: Light and Matter: Reading Messages from the Cosmos Light and Matter: Reading Messages from the Cosmos 5.1 Light in Everyday Life Our goals for learning: How do we experience
More informationTopic 2: Heat Affects Matter in Different Ways
Topic 2: Heat Affects Matter in Different Ways 1 2.1 States of Matter and the Particle Model of Matter A. States of 1. Matter is made up of tiny particles and exist in 3 states:, and. 2. Matter can change
More informationChapter 5 Light and Matter: Reading Messages from the Cosmos
Chapter 5 Light and Matter: Reading Messages from the Cosmos 5.1 Light in Everyday Life Our goals for learning How do we experience light? How do light and matter interact? How do we experience light?
More informationEnergy: Conservation and Transfer
Energy: Conservation and Transfer 6.P.3 Understand characteristics of energy transfer and interactions of matter and energy. 6.P.3.1 Illustrate the transfer of heat energy from warmer objects to cooler
More informationK20: Temperature, Heat, and How Heat Moves
K20: Temperature, Heat, and How Heat Moves Definition of Temperature Definition of Heat How heat flows (Note: For all discussions here, particle means a particle of mass which moves as a unit. It could
More informationIntroduction of Heat Transfer. Prepared by: Nimesh Gajjar GIT-MED
Introduction of Heat Transfer Prepared by: Nimesh Gajjar GIT-MED Difference between heat and temperature Temperature is a measure of the amount of energy possessed by the molecules of a substance. It manifests
More informationIntroduction to Electromagnetic Radiation and Radiative Transfer
Introduction to Electromagnetic Radiation and Radiative Transfer Temperature Dice Results Visible light, infrared (IR), ultraviolet (UV), X-rays, γ-rays, microwaves, and radio are all forms of electromagnetic
More informationName Class Date. What are three kinds of energy transfer? What are conductors and insulators? What makes something a good conductor of heat?
CHAPTER 14 SECTION Heat and Temperature 2 Energy Transfer KEY IDEAS As you read this section, keep these questions in mind: What are three kinds of energy transfer? What are conductors and insulators?
More informationChapter 5 Light and Matter: Reading Messages from the Cosmos. How do we experience light? Colors of Light. How do light and matter interact?
Chapter 5 Light and Matter: Reading Messages from the Cosmos How do we experience light? The warmth of sunlight tells us that light is a form of energy We can measure the amount of energy emitted by a
More informationExercises Temperature (pages ) 1. Define temperature. 2. Explain how a common liquid thermometer works.
Chapter 21 Temperature, Heat, and Expansion Exercises 21.1 Temperature (pages 407 408) 1. Define temperature. 2. Explain how a common liquid thermometer works. Match each number with the corresponding
More informationLight and Matter: Reading Messages from the Cosmos. White light is made up of many different colors. Interactions of Light with Matter
Chapter 5 Lecture The Cosmic Perspective Light and Matter: Reading Messages from the Cosmos 5.1 Light in Everyday Life Our goals for learning: How do we experience light? How do light and matter interact?
More informationPHYSICAL SCIENCE SPRING FINAL REVIEW GUIDE
PHYSICAL SCIENCE SPRING FINAL REVIEW GUIDE 1. Draw a diagram to show the position of the Earth (include axis) and sun during the N. Hemisphere: a. Winter b. Spring 2. What times of year do the Sun s rays
More informationChapter 11. Energy in Thermal Processes
Chapter 11 Energy in Thermal Processes Vocabulary, 3 Kinds of Energy Internal Energy U = Energy of microscopic motion and intermolucular forces Work W = -F x = -P V is work done by compression (next chapter)
More informationkinetic molecular theory thermal energy.
Thermal Physics 1 Thermal Energy The kinetic molecular theory is based on the assumption that matter is made up of tiny particles that are always in motion. In a hot object the particles are moving faster
More informationPhysics 201. Professor P. Q. Hung. 311B, Physics Building. Physics 201 p. 1/3
Physics 201 p. 1/3 Physics 201 Professor P. Q. Hung 311B, Physics Building Physics 201 p. 2/3 : Study of physical systems involving the transfer of something called Heat. Physics 201 p. 2/3 : Study of
More informationLecture 4: Heat, and Radiation
Lecture 4: Heat, and Radiation Heat Heat is a transfer of energy from one object to another. Heat makes things warmer. Heat is measured in units called calories. A calorie is the heat (energy) required
More informationQuiz C&J page 316 (top), Check Your Understanding #6:... use a straw
Quiz on Chapter 11 Quiz 9 1. C&J page 316 (top), Check Your Understanding #6:... use a straw Quiz 9 1. C&J page 316 (top), Check Your Understanding #6:... use a straw 2. What volume of helium has the same
More informationCIE Physics IGCSE. Topic 2: Thermal Physics
CIE Physics IGCSE Topic 2: Thermal Physics Summary Notes Simple kinetic molecular model of matter Molecular model Solids Molecules close together in regular pattern Strong intermolecular forces of attraction
More informationChapter 12. Temperature and Heat. continued
Chapter 12 Temperature and Heat continued 12.3 The Ideal Gas Law THE IDEAL GAS LAW The absolute pressure of an ideal gas is directly proportional to the Kelvin temperature and the number of moles (n) of
More information2 nd Quarter Test Review
2 nd Quarter Test Review 1. Create a Venn diagram and add the following to the Venn diagram: a. Made from just one element b. Made from more than one element c. Forms through a chemical reaction Elements
More informationChapter 11. Energy in Thermal Processes
Chapter 11 Energy in Thermal Processes Vocabulary, 3 Kinds of Energy Internal Energy U Energy of a system due to microscopic motion and inter-molucular forces Work W -F x -P V is work done by expansion
More informationPHYSICS 289 Experiment 3 Fall Heat transfer and the Greenhouse Effect
PHYSICS 289 Experiment 3 Fall 2006 Heat transfer and the Greenhouse Effect Only a short report is required: worksheets, graphs and answers to the questions. Introduction In this experiment we study the
More information!U = Q " P!V. Q = mc!t. Vocabulary, 3 Kinds of Energy. Chapter 11. Energy in Thermal Processes. Example Temperature and Specific Heat
Vocabulary, 3 Kinds of Energy Chapter 11 Energy in Thermal Processes Internal Energy U = Energy of microscopic motion and intermolucular forces Work W = -F!x = -P!V is work done by compression (next chapter)
More information(Heat capacity c is also called specific heat) this means that the heat capacity number c for water is 1 calorie/gram-k.
Lecture 23: Ideal Gas Law and The First Law of Thermodynamics 1 (REVIEW) Chapter 17: Heat Transfer Origin of the calorie unit A few hundred years ago when people were investigating heat and temperature
More informationLaw of Heat Transfer
Law of Heat Transfer The Fundamental Laws which are used in broad area of applications are: 1. The law of conversion of mass 2. Newton s second law of motion 3. First and second laws of thermodynamics
More informationConduction and Convection
Conduction and Convection Convection Currents Definition Convection is the transfer of heat in liquids and gases. The hotter the liquid/gas the particles move faster and spread out. This means the gas/liquid
More informationThe inputs and outputs of energy within the earth-atmosphere system that determines the net energy available for surface processes is the Energy
Energy Balance The inputs and outputs of energy within the earth-atmosphere system that determines the net energy available for surface processes is the Energy Balance Electromagnetic Radiation Electromagnetic
More informationSimultaneous Conduction and Radiation Energy Transfer
Simultaneous Conduction and Radiation Energy Transfer Radiant energy can transfer from a colder to a warmer radiator. ###########, PhD Chemical Process Control Systems Engineer, PE TX & CA Abstract The
More informationAT350 EXAM #1 September 23, 2003
AT350 EXAM #1 September 23, 2003 Name and ID: Enter your name and student ID number on the answer sheet and on this exam. Record your answers to the questions by using a No. 2 pencil to completely fill
More informationHeat Transfer. Heat always moves from a warmer place to a cooler place. Hot objects in a cooler room will cool to room temperature.
Heat Transfer Heat always moves from a warmer place to a cooler place. Hot objects in a cooler room will cool to room temperature. Cold objects in a warmer room will heat up to room temperature. Question
More informationNO MID-TERM. Thermal Energy. Mathematica. CPR news. How energy can enter or leave a system. Power 25/03/11. in this course. Heat and Temperature
NO MID-TERM Thermal Energy Heat and Temperature in this course. Clickers Channel D Mathematica Optional (but very powerful) software for doing maths and substituting numbers into equations. Also good mathematical
More informationTemperature and Heat. Chapter 10. Table of Contents. Chapter 10. Chapter 10. Bellringer. Objectives. Chapter 10. Chapter 10
Heat and Heat Technology Table of Contents Temperature and Heat Section 3 Matter and Heat Bellringer Objectives The temperature of boiling water is 100 on the Celsius scale and 212 on the Fahrenheit scale.
More information