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Temperature: Fahrenheit, Celsius, and Kelvin

Temperature: Fahrenheit, Celsius, and Kelvin. Learning Target. Know the difference between Fahrenheit, Celsius, and Kelvin temperature scales and how to convert from one scale to another. Explain what is meant by Absolute Zero. Famous Scientists Looking Good.

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Temperature: Fahrenheit, Celsius, and Kelvin

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  1. Temperature:Fahrenheit, Celsius, and Kelvin

  2. Learning Target Know the difference between Fahrenheit, Celsius, and Kelvin temperature scales and how to convert from one scale to another. Explain what is meant by Absolute Zero.

  3. Famous Scientists Looking Good

  4. What is the difference between heat and temperature?

  5. Heat (Thermal Energy) vs. Temperature Heat (Thermal Energy) = sum total of all the KE of the particles in a sample. It is an energy Temperature = measure of the average KE of the particles. Measure of thermal energy.

  6. Thermometer The modern thermometer used in our class is filled with colored alcohol.

  7. Physical Properties that Depend on Temperature

  8. Temperature Scales • Fahrenheit (oF) *Introduced in 1724 *Defined by 2 fixed points based on the properties of water (32- freezing pt/212-boiling point) *First modern thermometer (Hg) • Celsius (oC) *Introduced 18 years later (1742) *Defined by setting freezing pointof water to 0o and boiling point to 100o *Absolute zero in Celsius is -273.15o • Kelvin *Introduced 1848 *Zero point set to Absolute Zero

  9. Converting Between ScalesCelsius and Fahrenheit oC = 5/9(oF – 32) oF= 9/5oC + 32

  10. Converting Between ScalesCelsius and Kelvin K= oC + 273

  11. Practice • Convert 32oF into Celsius (Proof of Concept)

  12. Practice • Convert 0oC into K

  13. Practice • Convert 580oF into K

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