PPT-Chapter 15: Temperature, Heat, and Expansion

2015 Pearson Education Inc This lecture will help you understand Temperature Heat Specific Heat Capacity Thermal Expansion 2015 Pearson Education Inc Temperature Temperature A number that corresponds to the warmth or coldness of an object. Temperature. Most materials expand when heated. Liquid thermometers based on mercury or alcohol expansion are common. Temperature is related to the random motion of atoms and molecules in a substance. . Heat Energy. Heat energy is due to the movement of atoms or molecules.. As atoms move faster they create more energy = causing Heat!. Thermal Energy. Depends upon the mass, temperature and phase of an object.. Physics of Everyday Life. Class 5: . Temperature, Heat. Temperature. Heat. Specific Heat Capacity. Thermal Expansion. Thermal Expansion of Water and . Ice. Conduction. Convection. Radiation. Newton’s Law of Cooling. Temperature and Heat. © 2016 Pearson Education, Inc.. Temperature . and heat. Goals:. Temperature – Figure 14.1. Temperature . is an attempt to measure the . ". hotness. ". . or . ". coldness. ". Fins and Extended Surfaces. 1. Chapter 3c : One-dimensional, Steady state conduction (with thermal energy generation) (Section 3.5 – Textbook). 2. 3.1 Implications of energy generation. Involve a local source of thermal energy due to conversion from another form of energy in a conducting medium.. Ectotherms. Rely mainly on external energy sources.. Endotherms. - Rely heavily on metabolic energy. Homeotherms. . maintain a relatively constant internal environment.. Poikilotherms. (= . heterotherms. 2.1. Temperature and the . Zeroth. Law of Thermodynamics. 2.2. Thermal Expansion. 2.3. Heat and the Absorption of Heat by Solids and Liquids. 2.4. Work and Heat in Thermodynamic Processes. 2.5. The First Law of Thermodynamics and Some Special Cases. . Today’s topics. Practical thermal effects. Devices for temperature measurement. Mechanisms of heat transfer. Science dealing with the relationship. between . thermal energy. (. random molecular motion. © 2016 Pearson Education, Inc.. Temperature . and heat. Goals:. Temperature – Figure 14.1. Temperature . is an attempt to measure the . ". hotness. ". . or . ". coldness. ". . on a scale you devise.. HEAT? TEMPERATURE?. How to measure temperature?. How to quantify temperature and heat?. How do heat transfer?. HEAT & TEMPERATURE. Temperature. is a quantitative measurement of . hotness/coldness. Absorption of Heat (18-4). Someone left an article of clothing at the last exam, please see me if it is yours.. Most materials expand as the temperature increases.. A. temperature change of . Δ. T. Defining Temperature. Temperature: a measure of the average kinetic energy of the particles in a substance. Adding or removing energy usually changes temperature. Internal Energy: energies associated with atomic motion. Chapter 15 (Temp, Heat, Expansion. ). Looking ahead: 2nd midterm Nov 18. Temperature . How hot something feels is a measure of the kinetic energy of the constituent atoms/molecules – these are continually randomly jiggling. We’ll study concepts and relationships between temperature, heat, energy, expansion.. 1. = T. 2. . . The most common is Celsius temperature scale. T= 0. o. C is the melting point of ice, and T= 100. o. C is the boiling temperature of water at atmospheric pressure.. Many properties of matter depend on temperature. For most substances, volume increases upon heating (exception: water near freezing point, between 0.