Spahn's Science Lectures Courses

College Physics 2 - Electric Potential and Potential Energy

An introduction to electric potential and potential energy, showing how charge separation creates voltage in batteries, capacitors, and lightning.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

College Physics 2 - Conductors and Electric Fields

Explores how charges and electric fields behave in and around conductors, including electrostatic shielding, forces, and torque on dipoles.

• YouTube
• 35 minutes
• Self-Paced
• Free Video

College Physics 2 - Applications of the Electric Field

Apply electric-field equations to vector-sum problems, parallel-plate capacitors, field-line diagrams, and conceptual questions.

• YouTube
• 42 minutes
• Self-Paced
• Free Video

College Physics 2 - The Electric Field

Understand how electric fields transmit forces through space, visualize them with a hands-on demonstration, and solve basic field problems.

• YouTube
• 43 minutes
• Self-Paced
• Free Video

College Physics 2 - Charge, Charging, and Atoms

Explore how charges behave in conductors and insulators, reaching electrostatic equilibrium and producing polarization, conduction, and induction.

• YouTube
• 28 minutes
• Self-Paced
• Free Video

College Physics 2 - Experimenting With Charge

Explore charge and electric forces through experiments on frictional charging, attraction and repulsion, charge transfer, conductors, and insulators.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

College Physics 1 - Apparent Forces, Orbits, and Gravity

Explains why centrifugal force is apparent, then applies circular-motion dynamics to apparent weight, orbits, and Newtonian gravity.

• YouTube
• 38 minutes
• Self-Paced
• Free Video

College Physics 1 - Circular Motion

Learn how uniform circular motion changes velocity, creates centripetal acceleration, and links period and frequency to speed.

• YouTube
• 23 minutes
• Self-Paced
• Free Video

College Physics 1 - Friction and Drag

Derives friction and drag equations and applies them to force problems involving static and kinetic friction, air resistance, and terminal speed.

• YouTube
• 33 minutes
• Self-Paced
• Free Video

College Physics 1 - Weight, Apparent Weight, and Normal Force

Learn how mass, weight, normal force, and acceleration explain apparent weight, including why elevator motion changes what a scale reads.

• YouTube
• 41 minutes
• Self-Paced
• Free Video

College Physics 1 - Newton's Laws and Free-Body Diagrams

Introduces Newton’s three laws through free-body diagrams, then tests force, mass, acceleration, and equilibrium concepts with 12 questions.

• YouTube
• 36 minutes
• Self-Paced
• Free Video

College Physics 1 - Motion and Forces

Introduces dynamics qualitatively through Newton’s First Law, force vectors, friction, and common forces such as weight, tension, and normal force.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

College Physics 1 - Vector Components and Motion on a Ramp

Learn to decompose vectors into components and analyze acceleration for objects moving along inclined ramps.

• YouTube
• 34 minutes
• Self-Paced
• Free Video

College Physics 1 - Instantaneous Velocity

Analyze uniform motion and instantaneous velocity through position–time and velocity–time graphs, using slopes and areas to connect position, displacement, and velocity.

• YouTube
• 30 minutes
• Self-Paced
• Free Video

College Physics 1 - Representing Position and Velocity

Learn to represent motion with position-time and velocity-time graphs, and derive one graph from the other using slopes and motion examples.

• YouTube
• 46 minutes
• Self-Paced
• Free Video