PPT-Lesson 4 : Heat Energy Thinking about Heat, Energy, and Temperature: An Introduction

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. Computational thinking. How to use this resource. Presenting these exercises as a PowerPoint presentation allows you to use the resource in a variety of ways:. Projecting the exercise from the front of the class as a starter/plenary activity.. On the front counter there is a perpetually thirsty bird. Do NOT touch him.. Write down all your . observations. of the motion. Do not try to explain why it’s happening—just look at WHAT is happening. . 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).. 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. Topic 5.1. THERMOCHEMISTRY. The study of heat released or required by chemical reactions. Fuel is burnt to produce energy - combustion. CH. 4(g). 2O. 2(g). CO. 2(g) . 2H. 2. 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.. USING THERMAL ENERGY. Thermal Energy. Lesso. n Objectives:. • Explain the relationship between temperature and thermal energy.. • Define heat and specific heat.. Thermal Energy. Lesson Summary:. Heat is the transfer of thermal energy between objects that have different temperatures. . Heat. Heat. is energy that flows from a higher-temperature object to a lower-temperature object because of the difference in temperatures.. SI Unit of Heat:. joule (J).. SI unit for heat is the joule, J. Section 16.1 – Thermal Energy and Matter. In the 1700’s most . scientists. thought that . heat. was a . fluid. called . caloric. that flowed between objects.. Count Rumford. Rumford. studied the process of . 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. HEAT ENERGY TRANSFER AND AIR TEMPERATURE As we have seen, Earth’s Weather and Climate are the results of the intricate interrelationships between the Earth and the Sun, and between the components of our Atmosphere and 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. In fact, the atmosphere receives very low amount of heat energy from the sun as it receives most of its energy from the long wave terrestrial radiation.. Atmosphere receive energy from the sun and the earth in different ways. .