Mechanical Equivalent of Heat

 

Heat Energy

Definition of specific heat; Q=mcδ T; examples from human body, food consumption, bike-riding.

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Chemical and Mechanical Energy

Definition, with demonstrations of crank to brighten bulbs and of acid battery cells.

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  • Watch {}video clip from Lecture 14 (30:19 - 39:07)

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Solar and Nuclear Power

Discussion of world power consumption; feasibility of solar power; nuclear power and radioactive china.

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  • Watch {}video clip from Lecture 14 (39:07 - 44:33)

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The Energy Crisis

Discussion of limited availability of fossil fuels; fusion power; demonstration of glowing balls.

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Fluids

General properties of fluids; temperature defined; heat and temperature; pressure defined; pressure versus height; buoyancy forces; Bernoulli's equation.

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Kinetic Theory and Ideal Gas

Ideal gas law defined (pV = nRT = NkT); work and heat as processes leading to changes of state; gas properties; kinematics and dynamics of gas molecules; degrees of freedom of motion for gas molecule; equipartition theorem; derivation of ideal gas law; ideal atmosphere and isothermal atmosphere.

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Mechanical Equivalent of Heat

Definition of a calorie; thermometric property and calibration of a thermistor; mechanical equivalent of heat experiments; heat capacity of water; specific heat of water experiments.

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Thermodynamics Review

Heat and temperature defined; concept of state variable defined; heat, work, and the first law of thermodynamics; thermodynamic cycles; heat engines and efficiency; carnot limit; second law of thermodynamics defined.

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Burning Calories

Computing the work done and calories burned by a cyclist.

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Energy Transformation

Temperature increase in the body of a runner using specific heat.

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