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Temperature

• On the Celsius scale, water freezes at 0°C and boils at 100°C. On the Fahrenheit scale, water freezes at 32 F and boils at 212 F.
• To obtain the temperature in K (Kelvin), add 273.15 to its value in Celsius. The lowest temperature possible is 0 K; this is the absolute zero.
• A thermometer has a thermometric property, a property that changes with temperature and which may, therefore, be used to measure the temperature.
• An object of length L usually expands if its temperature is increased:

Change in L = (Coefficient of linear expansion)(original L)(Change in T).

A similar relation holds for the change in volume upon changing T.

• If an object with a hole is heated, the hole expands.
• Water has its maximum density of 999.973 kg per cubic meter at 4°C.

Temperature

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
• Celsius and Fahrenheit 0:20
• Thermometer in Ice Water
• Thermometer in Boiling Water
• Celsius to Fahrenheit Conversion
• Kelvin Temperature Scale 11:15
• Constant Volume Gas Thermometer
• Measuring Temperature of Liquid
• Temperature Increase, Pressure Increase
• Absolute Zero -273.15 Degree/Celsius
• Thermometers 25:44
• Thermometric Property
• Constant Volume Gas Thermometer
• Example: Electrical Resistance
• Linear Thermal Expansion 31:40
• Heated Metal Rod
• Expansion of Holes 41:05
• Sheet of Some Substance and Heat it
• Sheet with Hole
• As Temperature Increases, Hole Expands
• Volume Thermal Expansion 47:02
• Cube of Aluminum
• Water Expands More than Glass
• Behavior of Water Near 4c 54:33
• Plotting the Density of Water
• Extra Example 1: Volume of Diesel Fuel
• Extra Example 2: Brass Pendulum