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Temperature and Heat

the BIG idea. CHAPTER OUTLINE. CHAPTER. NEW CHAPTER. Temperature and Heat. Heat is a flow of energy due to temperature differences. 2.1. Temperature depends on particle movement. 2.2. Energy flows from warmer to cooler objects. 2.3. The transfer of energy as heat can be controlled.

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Temperature and Heat

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  1. the BIG idea CHAPTER OUTLINE CHAPTER NEW CHAPTER Temperature and Heat Heat is a flow of energy due to temperature differences. 2.1 Temperature depends on particle movement. 2.2 Energy flows from warmer to cooler objects. 2.3 The transfer of energy as heat can be controlled.

  2. hot liquid cold liquid 2.1 Temperature depends on particle movement. • All particles in matter have kinetic energy. • Temperature is the measurement of the average kinetic energy of particles in an object. kinetic theory of matter • Temperature is commonly measured on the Fahrenheit or Celsius scales. temperature degree • Particles in a warmer substance have a greater average kinetic energy than particles in a cooler substance. thermometer SECTION OUTLINE

  3. heat ice 2.2 Energy flows from warmer to cooler objects. • Heat is a transfer of energy from an object at a higher temperature. heat • Energy is transferred from the warmer lemonade to the cold ice through heat. thermal energy calorie • Different materials require different amounts of energy to change temperature. joule specific heat SECTION OUTLINE

  4. Types of Energy Transfer 2.3 The transfer of energy as heat can be controlled. • Energy can be transferred by conduction, convection, and radiation. conduction • Different materials are used to control the transfer of energy. conductor insulator convection Conduction Convection Radiation radiation • Energy transferred by electromagnetic waves such as light, microwaves, and infrared radiation • Energy transferred by direct contact • Occurs in gases and liquids • Movement of large number of particles in same direction • Energy flows directly from warmer object to cooler object • All objects radiate energy • Occurs due to difference in density • Can occur within one object • Can transfer energy through empty space • Cycle occurs while temperature differences exist • Continues until object temperatures are equal SECTION OUTLINE

  5. 2.1 Temperature depends on particle movement. I. Temperature depends on particle movement. kinetic theory of matter • A. All matter is made of moving particles. temperature • 1. The Kinetic Theory of Matter degree • 2. Temperature and Kinetic Energy thermometer • B. Temperature can be measured. • 1. Temperature Scales • 2. Thermometers • 3. Thermal Expansion KEY CONCEPT SUMMARY

  6. 2.2 Energy flows from warmer to cooler objects. II. Energy flows from warmer to cooler objects. heat • A. Heat is different from temperature. thermal energy • 1. Heat and Thermal Energy calorie • 2. Measuring Heat joule • B. Some substances change temperature more easily than others. specific heat • 1. Specific Heat • 2. Specific Heat and Mass KEY CONCEPT SUMMARY

  7. 2.3 The transfer of energy as heat can be controlled. III. The transfer of energy as heat can be controlled. conduction • A. Energy moves as heat in three ways. conductor • 1. Conduction insulator • 2. Convection convection • 3. Radiation radiation • B. Different materials are used to control the transfer of energy. KEY CONCEPT SUMMARY

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