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For more information, please see full course syllabus of AP Physics B
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Lecture Comments (2)

1 answer

Last reply by: Jamal Tischler
Sat Jan 23, 2016 12:26 PM

Post by Jimmy Wu on October 16, 2012

You made a mistake it is 16 not 160.

Heat

  • Heat is the energy that flows from the higher temperature object to the lower temperature object when the two are placed in contact.
  • When heat Q is added to an object of mass m, its temperature increases according to the equation Q = mc(Final T – Initial T0, where c is the specific heat capacity of the object.
  • When two objects are in contact and are isolated from the environment, the heat gained by one is equal to the heat lost by the other; this is simply the conservation of energy.
  • The amount of heat added (or removed) per kilogram as a substance changes its phase (ice to water, for example) is the latent heat. The latent heat of fusion is the amount of heat that must be added to 1 kg of ice at 0 C to transform it to water at 0 C. The latent heat of vaporization is the amount of heat that must be added to 1 kg of water at 100 C to transform it to steam at 100 C.

Heat

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Heat and Internal Energy 0:09
    • Cup of Hot Tea, Object is Hot
    • Heat Flows From Hot Object to Cold Object
    • Internal Energy , Kinetic+Potential Energy of All Atoms
  • Specific Heat 9:01
    • Object of Substance
    • Temperature Change by Delta T
    • Mass of Water
  • Calorimeter 21:35
    • Calorimeter-Thermal Insulated Container
  • Latent Heat 30:23
    • Ice at 0 degrees
    • Heating the Ice
    • Water-Latent Heat of Fusion
    • Converting Ice from -20 to 0 Degree
  • Example: Ice Water 42:10
    • Water of Mass 0.2 Kg
    • Mass of Ice that is Melted
  • Transfer Of Heat 48:27
    • Convection Mass Moment
    • Conduction
    • Radiation
  • Extra Example 1: Electric Heater with Water
  • Extra Example 2: Mass of Steam
  • Extra Example 3: Water in Pool