thermal energy and heat temperature, thermal energy, and heat the transfer of heat thermal energy...
TRANSCRIPT
Thermal Energy and Heat
Temperature, Thermal Energy, and Heat
The Transfer of Heat
Thermal Energy and States of Matter
Uses of Heat
Table of Contents
Thermal Energy and Heat Temperature,Thermal Energy and Heat
Temperature
Temperature is a measure of the average kinetic energy of the individual particles in matter.
Thermal Energy and Heat Temperature,Thermal Energy and Heat
Temperature
Temperature changes cause the level of the liquid inside a thermometer to rise and fall.
Thermal Energy and Heat Temperature,Thermal Energy and Heat
The three common scales for measuring temperature are the Fahrenheit, Celsius, and Kelvin scales.
Temperature Scales
Thermal Energy and Heat
Specific Heat
The specific heat of three different materials was measured. These data are shown in the graph.
Temperature,Thermal Energy and Heat
Thermal Energy and Heat
Specific Heat
Water, sand, and iron
Reading Graphs:
What three materials are compared in the graph?
Temperature,Thermal Energy and Heat
Thermal Energy and Heat
Specific Heat
About 4,200 J would be required
Interpreting Data:
About how much heat is required to raise 1 kg of water by 1 K?
Temperature,Thermal Energy and Heat
Thermal Energy and Heat
Specific Heat
Sand
Drawing Conclusions:
According to the graph, which material requires more heat to raise its temperature by 1 K, iron or sand?
Temperature,Thermal Energy and Heat
Thermal Energy and Heat Temperature,Thermal Energy and Heat
Specific Heat
A material with a high specific heat can absorb a great deal of thermal energy without a great change in temperature.
Thermal Energy and Heat
Energy Measured
Units
Comparing and ContrastingAs you read, compare and contrast temperature, thermal energy, and heat by completing a table like the one below.
TemperatureAverage kinetic energy of particles
Fahrenheit or Celsius degrees, kelvins
Thermal EnergyTotal energy of all particles in an object
Joules
Heat Energy transferred Joules
Temperature,Thermal Energy and Heat
Thermal Energy and Heat
Temperature
Click the Video button to watch a movie about temperature.
Temperature,Thermal Energy and Heat
Thermal Energy and Heat
Links on Temperature and Heat
Click the SciLinks button for links on temperature and heat.
Temperature,Thermal Energy and Heat
Thermal Energy and Heat
End of Section:Temperature,
Thermal Energy, and Heat
Thermal Energy and Heat - The Transfer of Heat
Heat Moves One Way
If two objects have different temperatures, heat will flow from the warmer object to the colder one.
Thermal Energy and Heat - The Transfer of Heat
Insulators
Air between the panes of this window acts as an insulator to slow the transfer of heat.
Thermal Energy and Heat
Main Idea
Detail Detail Detail
Identifying Main IdeasAs you read the section “How Is Heat Transferred?,” write the main idea in a graphic organizer like the one below. Then write three supporting details that further explain the main idea.
Heat can be transferred in three ways.
Conduction– transfer of heat between particles without the movement of matter
Convection– transfer of heat by the movement of currents in a fluid
Radiation– transfer ofenergy by electromagnetic waves
- The Transfer of Heat
Thermal Energy and Heat
Links on Heat Transfer
Click the SciLinks button for links on forms of heat transfer.
- The Transfer of Heat
Thermal Energy and Heat
Insulators
Click the Video button to watch a movie about insulators.
- The Transfer of Heat
Thermal Energy and Heat
End of Section:The Transfer of
Heat
Thermal Energy and Heat
End of Section:Graphic Organizer