Khan Academy
Khan Academy: 2015 Ap Chemistry Free Response 7
Calculating the necessary energy to recycle aluminum from aluminum oxide which was a question on the 2015 AP Chemistry exam. [6:16]
Khan Academy
Khan Academy: Proof: Volume Ratios in a Carnot Cycle
An explanation to prove the volume ratios in a Carnot cycle. [17:08]
Khan Academy
Khan Academy: Proof: S (Or Entropy) Is a Valid State Variable
An explanation to prove that entropy, labeled as S, is a valid state variable. [15:38]
Khan Academy
Khan Academy: More on Entropy
An explanation showing the differences between microstates and macrostates emphasizing that entropy is defined for a system and not different microstates. [8:56]
Khan Academy
Khan Academy: Maxwell's Demon
Explanation of a concept that seems to defy the Second Law of Thermodynamics. [13:27]
Khan Academy
Khan Academy: Gibbs Free Energy Example
Calculating change in Gibb's free energy to identify whether or not a reaction is spontaneous. [9:56]
Khan Academy
Khan Academy: More Rigorous Gibbs Free Energy / Spontaneity Relationship
Extended explanation of the effect of a negative charge on Gibbs Free Energy. [13:56]
Khan Academy
Khan Academy: A Look Ar a Seductive but Wrong Gibbs/spontaneity Proof
An explanation why many textbooks are incorrect in their details about the "proof" of the relation between Gibbs free energy state and spontaneity. [6:41]
Khan Academy
Khan Academy: Changes in Free Energy and the Reaction Quotient
An explanation of Gibbs Free Energy and the reaction quotient under conditions that are not standard. [15:47]
Khan Academy
Khan Academy: Thermodynamic Entropy Definition Clarification
Using a reversible system to clarify the definition of entropy in thermodynamics. [15:38]
Khan Academy
Khan Academy: Entropy Intuition
An introduction to the Second Law of Thermodynamics focusing on terms of heat and microstates. [19:15]
PBS
Pbs Learning Media: Energy Transfer in a Trebuchet
On NOVA, a team of carpenters, timber framers, engineers, and historians recreate a medieval throwing machine called a trebuchet. This adapted video segment explores how understanding energy transfer informs their design. [4:17]
Other
Conservation of Energy in Waves
High school teacher Kate Nichols explains that wave energy is equal to the amplitude of a wave. Looks at different scenarios where we may notice that wave energy is being conserved or not. The conversion of wave energy into another type...
OpenSciEd
Open Sci Ed: 6.2 Thermal Energy: Teacher Playlist
This teacher playlist demonstrates the Thermal Energy unit investigations where the students find that there are two ways to transfer energy into a drink: (1) the absorption of light and (2) thermal energy from the warmer air around the...
OpenSciEd
Open Sci Ed: 6.2 Thermal Energy: Student Playlist
This student playlist demonstrates the Thermal Energy unit investigations where the students find that there are two ways to transfer energy into a drink: (1) the absorption of light and (2) thermal energy from the warmer air around the...
Bozeman Science
Bozeman Science: Heating
In the following video Paul Andersen explains how heating is the transfer of energy (heat) from a warmer object to a cooler object. Heat can be transferred through conduction, convection and radiation. At the microscopic level conduction...
Bozeman Science
Bozeman Science: Heat Exchange
In the following video Paul Andersen explains how energy can be transferred from warmer objects to colder objects through heat. Temperature is a measure of the average kinetic energy of the particles in a substance. When two objects are...
Bozeman Science
Bozeman Science: Energy Transfer
In the following video Paul Andersen explains how energy can be transferred from one system to another. In a closed system the energy can be transferred as either work or heat. Thermal energy transfer is know as energy transfer through...
Bozeman Science
Bozeman Science: Conservation of Energy
In the following video, Paul Andersen explains how energy can neither be created nor destroyed but may be transferred. Energy comes in many forms. [4:09]
Crash Course
Crash Course Kids 45.1: Life on Other Planets
In this episode of Crash Course Kids, Sabrina shares some ideas about what life might be like on other planets. [4:27]
Crash Course
Crash Course Kids 45.2: Planetary Plants
In this episode of Crash Course Kids, Sabrina talks about what plant life could look like on other planets. [4:39]
Crash Course
Crash Course Kids 7.1: Fabulous Food Chains
In this episode of Crash Course Kids, Sabrina talks about the way energy moves, or flows, through an ecosystem and how that movement forms food chains. [2:46]
Bozeman Science
Bozeman Science: Cycles of Matter & Energy Transfer in Ecosystems
Paul Andersen explains how matter moves from the environment into living organisms and back into the environment. Food webs are used to show how matter and energy move through organisms. Ecological pyramids show that matter and energy...
The Kid Should See This
Tksst: Physics Girl: The Stacked Ball Drop (And Supernovas)
What happens when you drop a stack of bouncy balls together? Watch this classic momentum transfer demonstration, and discover how it relates to a supernova. [3:33]