AP Physics II.B Temperature and Heat. 12.4, 6 Thermal Expansion, Heat and Internal Energy.

Slides:



Advertisements
Similar presentations
Chapter 6 Thermal Energy
Advertisements

Ex. 1 - A healthy person has an oral temperature of 98.6°F. What would be this reading on the Celsius scale?
TemperatureThermal EnergyHeat A measure of the average kinetic energy of the particles in a substance Degrees Fahrenheit, degrees Celsius, or Kelvins Does.
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.
Chapter 17 Temperature, Thermal Expansion, and the Ideal Gas Law
Heat Transfer.
WEEK20 PHYSICAL SCIENCE VOCABULARY. 1) THERMAL ENERGY Total amount of energy in all of the particles contained in a sample of matter.
 Describe the image  ◦ What is it? ◦ What does it measure? ◦ How does it work?
Thermal energy and Heat. Thermal energy Thermal energy is the total kinetic energy of all particles in a substance Measured in joules (J) This is not.
Temperature and Kinetic Theory. Atomic Theory  Atom – smallest piece of mater  Atomic Mass  unit – atomic mass unit – amu  1amu = 1.66 x kg.
Heat vs Temperature Heat: The energy that transfers from one object to another because of a temperature difference between them. a higher-temperature object.
Copyright © 2009 Pearson Education, Inc. Lecture 9: Temperature & Heat.
Heat energy is due to the movement of atoms or molecules. As atoms move faster they create more energy = causing Heat!
Heat is a form of:. Everything in the universe has heat energy! Your BODY, your CAR…even ICE!
Thermal Energy. How does thermal energy work? Important terms to know:  Temperature:
Heat Transfer.
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.
Temperature and Heat   Temperature and Thermometers   Is it hot or cold?   Mercury vs. alcohol Expansion or contraction of a material   Electrical.
Thermodynamics. Temperature  How hot or cold something feels compared to a standard  Typically water is our standard  Function of kinetic energy 
Additional Notes. What is the total energy of motion in the molecules of a substance? Thermal Energy.
Chapter 9 HEAT Goals: Temperature vs Heat, Thermal Energy, Temperature conversions, Specific Heat Capacity, Phase changes and Latent Heat.
Heat Not just hot or cold…but much, much more!!!.
Why do things feel hot? What is heat? What is temperature?
Conduction The transfer of energy as heat between particles collide within a substance or between two objects in contact Two objects of unequal temperature.
Hot Seat!. Thermal Energy Transfer Multiple Choice Hypothesis, Data, and Graphs True or False? More Thermal Energy
AP Physics B Temperature & Heat. What is Temperature? Temperature is a property that determines the direction of thermal energy transfer between two bodies.
Ch Energy Transfer Kinetic Molecular Theory “Kinetic” = moving “Molecular” = all matter is made up of atoms and molecules So all matter is made up.
Thermal Energy Mini-Review. Definitions ____________ is the measure of the average kinetic energy of the particles in a sample of matter. Temperature.
HEAT TRANSFER-CONDUCTION CONVECTION AND RADIATION.
Hosted By Mrs. Anicito C or I Temperature Heat Transfer
Heat Notes  Expansion – to increase in size  Contraction – to decrease in size  Most materials expand when heated and contract when cooled –Exceptions:
Heat and Energy Study Guide CH 3-2 for Quiz. What happens when objects with different temperatures come into contact with each other?  Energy will always.
Ch Energy II. Thermal Energy  Temperature  Thermal Energy  Heat Transfer.
Heat Notes  Expansion – _______ ___________________  Contraction – ______ _______________________  Most materials ________ when heated and _______ when.
Ch. 6 – Thermal Energy. Sec. 1 – Temperature & Heat ENERGY Kinetic (KE) Potential – (PE) Energy of Motion Energy Stored.
Thermal Energy & Energy Transfer. Kinetic-Molecular Theory in a hot body, the particles move faster, and thus have a higher energy than particles in a.
Thermal Energy & Heat 1.Temperature – The measure of the average kinetic energy of the particles that make up a substance. 2.Temperature Scales – Fahrenheit,
Convection Currents Heat is always transferred from warmer substance to a cooler substance. Write down some examples of this concept:
I. WHAT IS TEMPERATURE? We don’t use the terms hot and cold often in science because they are relative terms: They could mean different things depending.
Heat –Thermal Energy moving from a warm object to a cooler object Heat can transfer or move in 3 ways –Conduction –Convection –Radiation.
Temperature - A measure of how hot or cold. Measured in Celsius, Fahrenheit, and Kelvin. THERMAL ENERGY AND MATTER.
* Materials that allow heat, electricity, or sound waves to pass through them.
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,
Chapter 9 Heat. Temperature  Temperature is proportional to the kinetic energy of atoms and molecules.  Internal energy is the energy of a substance.
Chapter 17 and Chapter 19 Heat and the First Law of Thermodynamics
Thermal Energy & Heat.
Energy.
Ch Energy Transfer Kinetic Molecular Theory “Kinetic” = moving
Vocabulary Week 4.
Thermal Energy & Heat.
Thermal Energy, Heat, and Temperature
Heat Transfer and Molecular Motion
Essential Question: How does energy change from one form to another?
Heat Transfer Vocabulary
Heat Warmth and Coldness.
Energy Transfer Through Heat
Heat Transfer and Molecular Motion
Heat Temperature Conduction Convection Radiation
Heat and Temperature.
Unit 3 - Energy Learning Target 3.4 – Define Temperature and explain how thermal energy is transferred (conduction, convection, & radiation)
Heat Transfer Science Vocabulary
Energy & Transformations
Energy Vocabulary.
Heat Transfer and Molecular Motion
Chapter 17 Temperature, Thermal Expansion
Write down some examples of this concept:
Heat Energy The Average Kinetic Energy in an object is temperature
Heat.
Chapter 16 Notes Heat.
Thermal Energy.
Presentation transcript:

AP Physics II.B Temperature and Heat

12.4, 6 Thermal Expansion, Heat and Internal Energy

Loosen the lid

Factors in linear expansion

And the boxer is...

Ex. The steel bed of a suspension bridge is 2.00 EE 2 m long at a temperature of 20.0º C. The extremes of temperature to which it is exposed are –30.0º C and 40.0º C. How much will the bridge expand and contract under these conditions?

A bimetallic strip

Expansion of holes

Ex. An iron ring is to fit snugly on a cylindrical rod at 20.0º C. The diameter of the rod is cm and the inside diameter of the ring is cm. To slip the ring over the rod it must larger than the rod by a diameter of cm. At what temperature will the ring fit onto the rod?

12.6 Heat and Internal Energy

What is heat?

Transfer of energy

Internal energies of the atoms and molecules in a substance Translational kinetic energy (movement of a gas molecule or atom) Rotational kinetic energy (molecule spinning around its center of mass) Electrical potential energy (bending and stretching between atoms of a molecule)

Transfer of Heat

Conduction – high energy atoms come into contact and therefore transfer energy to low energy atoms

Convection (fluids) – replacement of cold matter with hot matter

Electromagnetic Radiation – no transfer of matter involved

Rev. 99B1; p. 124: 52, 79; p. 207: 7, 10; p. 300: 15, 21 99B1 a) 0.39gEb) 44 Nc) 41 N d) ?e) 360 m d) 0.15 N 52.a) Nb) N m

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.