PPT-Heat, Temperature and Thermometers

Introduction to Heat Heat is a form of energy A large amount of energy ends up as heat Example in a car some of the chemical energy stored in petrol is turned into heat energy Heat can have a significant effect on solids liquids and gases such as expansion. 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.. EXPANSION THERMOMETERS . EXPANSION OF SOLIDS . (BIMETAL STRIPS). Bimetal strips consist of two different metal strips having different coefficient of expansion are bonding together. When the strip is subjected to a temperature higher than the bonding temperature, it will bend in one direction. When the strip is subjected to a temperature lower than the bonding temperature, it will bend in the other direction. 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. © 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.. How do we measure Temperature?. Thermal expansion . – The fluid in a thermometer’s bulb heats up and expands, increasing the volume until it flows up the tube of the thermometer.. Color change. – Some materials change color based on their temperature. Examples are forehead thermometers and mood rings.. Discovery Education Video:. This clip introduces heat, energy, and temperature. Some key terms and concepts are introduced. . Heat is a form of energy . that we can feel.. What is heat?. What is heat?. Chapter Number 5. Class Name. Instructor Name. Date, Semester. Book Title. Book Author. Learning Objectives. After this presentation, you should be able to complete the following Learning Outcomes. 5.0. Chapter. 18. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 18-. 1. . Temperature. 18.01 . Identify the lowest temperature as 0 on the Kelvin scale (absolute zero).. 18.02 . Explain the . 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. Flows from higher-temperature object to lower-temperature object. System. (T. 1. ). Surroundings. (T. 2. ). Heat. If T. 1. > T. 2. q . system. = -. exothermic. System. (T. 1. ). Surroundings. (T. TRIAGE History, or axillary using mercury thermometer), BP, Pulse, Respiratory Rate, Oxygen Saturation and mental status using AVPU ** 1. Assess and manage airway , breathing and circulation :. Contents. Primary thermometers.. Gas thermometers.. Secondary thermometers.. Vapour pressure thermometers.. Resistance thermometers: Metals, alloys and semiconductors.. Thermoelectric thermometers.. 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. LECTURE. . OUTLINE . 19.1 . Temperature and the Zeroth Law of . Thermodynamics. 19.2 . Thermometers and the Celsius Temperature . Scale. 19.3 . The Constant-Volume Gas Thermometer and the Absolute Temperature Scale.