Notes
Outline
Prep Physics
Physics 40
Chapter 10 -- Heat
Last Time
Big bathtub
This Time
Heat
What is it?
How is it measured?
Temperature
Thermal expansion
Heat capacity
Heat flow
Heat engines
Early Theories of Heat
Fluid models
Count Rumford
Born Benjamin Thompson
Making Cannon
Heat and Energy
James Joule
Mechanical equivalent of Heat
Perpetual Motion Machines
Of the First Kind
Temperature
Thermal Expansion
Bimetallic strips
Heat Capacity
Measure of heat
Heat in a peanut
Calorimetry
Heat in a lead ball
Heat Flow
Insulation
Dewer Flasks
Nothing
is the best
insulator
Thermodynamics
Perpetual Motion Machines
of the second kind
Entropy
Boltzmann’s statistical model
Next Time Question
Demo Notes
Burning Peanut
Metal tubes
Lead Ball
Ball and Ring
Bimetallic strip
Burning Peanut
Heat content of a peanut
More than you might expect
Need
Test tube
Wire peanut holder
Also need
Metal tubes
Lead Ball
High Specific Heat of water
Need
Also need
Ball and Ring
Thermal Expansion
Also do bimetallic strip