# Khan Academy

The Khan Academy video links below are organized by chapter and cover some, but not necessarily all the topics you will be responsible for. They have been provided as an addition resources. Many are captioned for the hearing impaired.

## Suggested Unit One Videos:

### Chapter 17 (Electric Charge and Electric Field)

- Electrostatics Part 1: Introduction to Charge and Coulomb’s Law
- Elecrostatics Part 2: Electric Fields

### Chapter 18 (Electric Potential and Capacitance)

### Chapter 19 (Current, Resistance and Direct-Current Circuits)

- Introduction to circuits, current and resistance
- Resistors in Series
- Resistors in Parallel
- Hairy Resistance problem

## Suggested Unit Two Videos:

### Chapter 20 (Magnetic Field and Magnetic Forces)

- Introduction to the cross product
- Developing a little more intuition on the cross product
- Introduction to magnetism
- Magnetic force
- Magnetic force example
- Magnetic force example (continued)
- Magnetic force on a wire carrying current
- Magnetic field due to current in a wire
- Magnetic force that two current-carrying wires exert on each other
- More on the forces exerted by two current-carrying wires
- Electric Motors 1
- Electric Motors 2
- Electric Motors 3

### Chapter 21 (Electromagnetic Induction)

## Suggested Unit Three Videos:

### Chapter 23 (Electromagnetic Waves)

- Introduction to waves (review)
- Amplitude, period, frequency and wavelength of periodic waves (review)

### Chapter 24 (Geometric Optics)

- Refraction and Snell’s Law
- Refraction in Water
- Snell’s Law Examples 1
- Snell’s Law Example 2
- Total Internal Reflection
- Virtual Image
- Parabolic Mirrors and Real Images
- Parabolic Mirrors 2
- Convex Parabolic Mirrors
- Convex Lenses
- Convex Lens Examples
- Concave Lenses
- Object Image and Focal Distance Relationship (Proof of Formula)
- Object Image Height and Distance Relationship

### Chapter 26 (Interference and Diffraction)

## Suggested Unit Four Videos:

### Chapter 27 (Relativity)

### Chapter 28 (Photons, Electrons and Atoms)

### Chapter 30