Thermal Energy Thermal Energy How does thermal energy




















































































- Slides: 84

Thermal Energy

Thermal Energy How does thermal energy work?

Important terms to know: o Temperature:

Important terms to know: o Temperature: A measure of the average kinetic energy of the individual particles in matter.

Important terms to know: o Temperature: A measure of the average kinetic energy of the individual particles in matter. n Low temperatures = low kinetic energy

Important terms to know: o Temperature: A measure of the average kinetic energy of the individual particles in matter. Low temperatures = low kinetic energy n High temperatures = high kinetic energy n

Important terms to know: o Temperature: continued n Thermometers: As the liquid in thermometer heats up its volume increases (rises) and as it cools off its volume goes down (drops).

Important terms to know: o Temperature: continued n Scales: The three common scales are Fahrenheit, Celsius, and the Kelvin scales.

Important terms to know: o Temperature: continued n Scales: The three common scales are Fahrenheit, Celsius, and the Kelvin scales. p Fahrenheit: Used in the United States.

Important terms to know: o Temperature: continued n Scales: The three common scales are Fahrenheit, Celsius, and the Kelvin scales. p Fahrenheit: Used in the United States. p Celsius: Used nearly everywhere else.

Important terms to know: o Temperature: continued n Scales: The three common scales are Fahrenheit, Celsius, and the Kelvin scales. p Fahrenheit: Used in the United States. p Celsius: Used nearly everywhere else. p Kelvin: Commonly used in the physical sciences.

Important terms to know: o Temperature: continued n Conversions:

Important terms to know: o Temperature: continued Conversions: n °K = °C + 273 n

Important terms to know: o Temperature: continued Conversions: n °K = °C + 273 n °C = °K - 273 n

Important terms to know: o Temperature: continued Conversions: n °K = °C + 273 n °C = °K - 273 n °C = 5/9(°F – 32) n

Important terms to know: o Temperature: continued Conversions: n °K = °C + 273 n °C = °K - 273 n °C = 5/9(°F – 32) n °F = 9/5°C + 32 n

Thermal Energy: o Thermal Energy depends on:

Thermal Energy: o Thermal Energy depends on: n the number of particles an object has.

Thermal Energy: o Thermal Energy depends on: n n the number of particles an object has. the temperature of an object.

Thermal Energy: o Thermal Energy depends on: n n n the number of particles an object has. the temperature of an object. the arrangement of the object’s particles.

Thermal Energy: o Thermal Energy depends on: n n n the number of particles an object has. the temperature of an object. the arrangement of the object’s particles. o Heat:

Thermal Energy: o Thermal Energy depends on: n n n the number of particles an object has. the temperature of an object. the arrangement of the object’s particles. o Heat: n Thermal energy that moves from a warmer object to a cooler object.

Thermal Energy: o Thermal Energy depends on: n n n the number of particles an object has. the temperature of an object. the arrangement of the object’s particles. o Heat: n n Thermal energy that moves from a warmer object to a cooler object. Thermal energy only becomes heat when it is transferred.

Thermal Energy: o Thermal Energy depends on: n the number of particles an object has. n the temperature of an object. n the arrangement of the object’s particles. o Heat: n Thermal energy that moves from a warmer object to a cooler object. n Thermal energy only becomes heat when it is transferred. n It’s unit of measure is “Joules”.


Thermal Energy: o Specific Heat:

Thermal Energy: o Specific Heat: The amount of energy required to raise 1 g of a material by 1 °C.

Thermal Energy: o Specific Heat: The amount of energy required to raise 1 g of a material by 1 °C. o Measured in joules per kilogram-Celsius

Thermal Energy: o Specific Heat: The amount of energy required to raise 1 g of a material by 1 °C. o Measured in joules per kilogram-Kelvin n J/(kg*C)

Thermal Energy: o Common specific heats: n n n n Aluminum: Copper Glass Ice Iron Sand Water 903 J/(kg*C) 385 837 2, 060 450 800 4, 180

Heat Transfer: o Heat is transferred by three different methods.

Heat Transfer: o Heat is transferred by three different methods. n Conduction: The transfer of heat without the movement of matter.

Heat Transfer: o Heat is transferred by three different methods. n Conduction: The transfer of heat without the movement of matter. p. A metal spoon in a pan of hot water (the spoon gets hot over time).

Heat Transfer: o Heat is transferred by three different methods. n Convection: The transfer of heat by the movement of currents within a fluid.

Heat Transfer: o Heat is transferred by three different methods. n Convection: The transfer of heat by the movement of currents within a fluid. p Water heating up in a pot on the stove (you can see the water moving).

Heat Transfer: o Heat is transferred by three different methods. n Convection: The transfer of heat by the movement of currents within a fluid. p Water heating up in a pot on the stove (you can see the water moving). p Convection currents? !? !

Convection current:

Heat Transfer: o Heat is transferred by three different methods. n Radiation: The transfer of energy by electromagnetic waves.

Heat Transfer: o Heat is transferred by three different methods. n Radiation: The transfer of energy by electromagnetic waves. p. A fireplace warming a room.

Heat Transfer: o Heat is transferred by three different methods. n Radiation: The transfer of energy by electromagnetic waves. p. A fireplace warming a room. p Does not require matter to transfer thermal energy (the sun).

Heat Transfer: o Heat flow:

Heat Transfer: o Heat flow: n Heat transfer goes in one direction.

Heat Transfer: o Heat flow: n Heat transfer goes in one direction. p Heat leaves the warmer object and goes to the cooler object.

Heat Transfer: o Heat flow: n Heat transfer goes in one direction. p Heat leaves the warmer object and goes to the cooler object. p This will continue until the two objects have the same temperature.



Heat Transfer: o Conductors:

Heat Transfer: o Conductors: A material that transfers thermal energy well, partially because its atoms or molecules are close together.

Heat Transfer: o Conductors: A material that transfers thermal energy well, partially because its atoms or molecules are close together. n Silver n Stainless steel n tile

Heat Transfer: o Conductors: A material that transfers thermal energy well, partially because its atoms or molecules are close together. n Silver n Stainless steel n tile o Insulators:

Heat Transfer: o Conductors: A material that transfers thermal energy well, partially because its atoms or molecules are close together. n Silver n Stainless steel n tile o Insulators: A material that does not transfer thermal energy very well, partially because its atoms or molecules are not closely packed together.

Heat Transfer: o Conductors: A material that transfers thermal energy well, partially because its atoms or molecules are close together. n Silver n Stainless steel n tile o Insulators: A material that does not transfer thermal energy very well, partially because its atoms or molecules are not closely packed together. n n Wood Wool Paper Atmospheric gases

Thermal Expansion: Does matter with thermal energy?

Matter: o What is matter?

Matter: o What is matter? n Has mass

Matter: o What is matter? n Has mass n Takes up space (has volume)

Matter: o The three states of matter:

Matter: o The three states of matter: n Solids p Has a fixed shape p Has a fixed volume

Matter: o The three states of matter: n Solids p Has a fixed shape p Has a fixed volume n Liquids p Has a shape that can change p Has a fixed volume

Matter: o The three states of matter: n Solids p Has a fixed shape p Has a fixed volume n Liquids p Has a shape that can change p Has a fixed volume n Gases p Has a shape that can change. p Has a volume that can change.

Matter:

Matter: o The fourth state of matter is plasma.

Matter: o The fourth state of matter is plasma. n Plasma is the highest energy state of matter (moving super fast).

Matter: o The fourth state of matter is plasma. Plasma is the highest energy state of matter (moving super fast). n Very, very, very hot!!! n

Matter: o The fourth state of matter is plasma. Plasma is the highest energy state of matter (moving super fast). n Very, very, very hot!!! n Found in places like our sun. n

Matter: o The fourth state of matter is plasma. Plasma is the highest energy state of matter (moving super fast). n Very, very, very hot!!! n Found in places like our sun. n Not always considered a state of matter. n

Matter: o Changes in states of matter:

Matter: o Changes in states of matter: n Matter can change from any state to any other state by adding energy.

Matter: o Changes in states of matter: Matter can change from any state to any other state by adding energy. n The temperature does not change until the change of state is complete. n

Thermal Expansion: o When an object is heated it usually responds to the heat.

Thermal Expansion: o When an object is heated it usually responds to the heat. n One response is for the particles of the object to move faster and spread out (increasing volume).

Thermal Expansion: o When an object is heated it usually responds to the heat. One response is for the particles of the object to move faster and spread out (increasing volume). n This causes the object to expand is called thermal expansion. n

Thermal Expansion examples: o When thermometers are exposed to warmer temperatures.

Thermal Expansion examples: o When thermometers are exposed to warmer temperatures. o Thermostats in your home.


Thermal Expansion examples: o When thermometers are exposed to warmer temperatures. o Thermostats in your home. o Sidewalks


Thermal Expansion examples: o When thermometers are exposed to warmer temperatures. o Thermostats in your home. o Sidewalks o Bridges


Thermal Expansion examples: o When thermometers are exposed to warmer temperatures. o Thermostats in your home. o Sidewalks o Bridges o Jars (pickles, jelly, etc…)

Thermal Expansion: o Contraction:

Thermal Expansion: o Contraction: 1. The heat source gets removed.

Thermal Expansion: o Contraction: 1. 2. The heat source gets removed. The particles move less and take up less space.

Thermal Expansion: o Contraction: 1. 2. 3. The heat source gets removed. The particles move less and take up less space. The size of the object decreases.
Section 3 using thermal energy answers
Thermal energy vs heat energy
Thermal energy and mass
Thermal transfer vs direct thermal printing
Energy energy transfer and general energy analysis
Energy energy transfer and general energy analysis
What is the difference between thermal energy and heat?
Difference between conduction convection and radiation
Difference between heat and thermal energy
Difference between heat and thermal energy
Thermal energy vs heat
Thermal energy depends on
Define radient energy
Thermal energy definition
Difference between heat and thermal energy
Heat vs thermal energy
How to measure heat energy
Thermal vs heat energy
Which state of matter has the most thermal energy
Heat thermal energy and temperature
Chapter 12 study guide thermal energy
Thermal energy formula
Heat transfer jeopardy
Thermal energy equation
Thermal energy equation physics
Heat definition
Types of thermal energy transfers
Types of heat transfers
Sources of heat
Temperature and heat
Thermal energy equation
Thermal energy vs heat
Conclusion of energy in thermal system
Bill nye energy transformation
Thermal energy examples
Thermal energy formula
Chapter 12 thermal energy answers
Thermal energy and mass
3 ways heat travels
Foldable definition
Convrts
Thermal energy in states of matter
Section 16.1 thermal energy and matter
Section 1 matter and thermal energy
A thermal energy reservoir (ter) has
Units of thermal energy
Energy star thermal bypass checklist
Energy efficiency in thermal utilities
Hydrosphere
Thermal bypass checklist
Lesson outline lesson 1 solids liquids and gases answer key
Thermal energy depends on
Measure thermal energy
How is thermal energy created
Thermal energy system
How is thermal energy generated
Thermal energy flows from
Thermal energy notes
Renewable resources definition
What is thermal energy
Thermal energy notes
During conduction, thermal energy is transferred
Zero point energy correction gaussian
Thermal energy
Thermal energy vs temperature
Thermal energy vs temperature
Internal thermal energy
Q=mct
Thermal energy balance
Energy in thermal system lab report politeknik
Spettro luce visibile
Convection example with explanation
Define thermal energy
Thermal energy summary
Thermal energy is measured in ______.
What has more thermal energy an iceberg or hot water
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Does exocytosis require energy
Heating curve equations
How does the sun produce energy
Does simple diffusion require energy
How does energy move through the biosphere
Lattice energy trends
How do cells obtain the energy they need