Khan Academy
Khan Academy: Why Do Sounds Get Softer?
A video explaining two reasons why sounds would have to get softer as you get further from the source. [8:47]
Khan Academy
Khan Academy: Voltmeters and Ammeters
Learn about the instruments we use to measure voltage and current. [8:17]
Khan Academy
Khan Academy: Voltage
A video explaining the difference between electrical potential (voltage) and electric potential energy. Learn that electrical potential energy is associated with a charge and electric energy is associated with a position. [8:55]
Khan Academy
Khan Academy: Virus Structure and Classification
A video exploring how viruses are good about being hackers! Look at the properties of viruses that make them unique. [11:04]
Khan Academy
Khan Academy: Stereotypes Stereotype Threat, and Self Fulfilling Prophecy
Understand stereotype threats and self-fulfilling prophecies as they relate to prejudice. [6:13]
Khan Academy
Khan Academy: Stereotypes Stereotype Threat and Self Fulfilling Prophecies
Understand stereotype threats and self-fulfilling prophecies as they relate to prejudice. [6:13]
Khan Academy
Khan Academy: Steric Number and Sp3 Hybridization
Using steric number to calculate number of hybrid orbitals. [9:47]
Khan Academy
Khan Academy: The Periodic Table Transition Metals
This video [5:44] defines a transition metal, and explains how to write the electron configuration including examples for Fe and Zn.
Khan Academy
Khan Academy: Sufficient Assumptions Worked Example
In this video [5:55] watch a demonstration of one way to approach a sufficient assumption question. It is a worked example.
Khan Academy
Khan Academy: Sufficient Assumptions Video Lesson
In this video [9:55] watch one way to approach a question that asks you to identify a sufficient assumption on the logical reasoning section of the LSAT.
Khan Academy
Khan Academy: Balancing Redox Reactions in Acid
When balancing equations for redox reactions occurring in acidic solution, it is often necessary to add ions to fully balance the equation. In this video [12:04] we'll walk through this process for the reaction between dichromate and...
Khan Academy
Khan Academy: Balanced and Unbalanced Forces
A video [8:11] explaining how to identify balanced and unbalanced forces.
Khan Academy
Khan Academy: Stereoisomers, Enantiomers, and Chirality Centers
The definition of stereoisomers, enantiomers, and chirality centers. How to calculate the number of possible stereoisomers for a structure based on the number of chiral centers. [5:27]
Khan Academy
Khan Academy: Symbolic Interactionism
Symbolic interactionism takes a small-scale view of society and looks at the interactions between individuals. This video further explains this view and offers examples. [3:34]
Khan Academy
Khan Academy: Symmetric and Asymmetric Stretching
This video explains how symmetric and asymmetric stretching of two identical groups can lead to two distinct signals in IR spectroscopy.[11:02]
Khan Academy
Khan Academy: The Old Brain
Review for the MCAT with this video on "older" brain structures. [7:11]
Khan Academy
Khan Academy: The Nucleus
Learn about the cell organelle that contains the DNA in this video. [6 min. 4 sec.]
Khan Academy
Khan Academy: The Different Types of Mutations
Review for your MCAT by watching this video on the different types of genetic mutations. [5:52]
Khan Academy
Khan Academy: The Causes of Genetic Mutations
Prepare for the MCAT by watching this video on genetic mutations. [5:13]
Khan Academy
Khan Academy: Tension in an Accelerating System and Pie in the Face
In this video, Sal Khan figures out the tension in the wire connecting the two masses. Then he figures out how much we need to accelerate a pie for it to safely reach a man's face. [9:28]
Khan Academy
Khan Academy: Temperament, Heredity, and Genes
Review for the MCAT with this video on temperament, heredity, and genes. [9:27]