In this video, we explore equipotential surfaces and how they connect to electric potential and electric field lines. Using clear visuals and step-by-step reasoning, Mr. P helps you see how electric field lines are always perpendicular...

Even after more than 25 years of teaching physics, I’m still learning new things—and sometimes realizing I was wrong. In this video, I talk about how I misunderstood a concept related to the work due to nonconservative forces and what...

A moving object doesn’t always have a force in the same direction as its motion. Learn why with this simple hockey puck example and deepen your understanding of Newton’s laws.

Did you know the center of mass can be outside the object itself? Learn what center of mass really means and see clear examples with everyday objects like bananas, donuts, and golf clubs.

Can you blow a ping pong ball out of a funnel? Learn how Bernoulli’s Principle explains why you can't—demonstrated clearly and simply by Mr. P from Flipping Physics.

Learn the physics behind ideal fluid flow and the continuity equation—complete with animation, explanation, and a real-life garden hose example.

The water level in a glass remains the same as ice melts. A demonstration.

Explore the physics of why the water level in a glass remains the same as ice melts.

Calculate the percentage of an object that stays submerged when it floats. Understand the relationship between the density of an object and the fluid it floats in.<br/>

Learn how to prove the buoyant force on a submerged object equals the weight of the water it displaces. This quick experiment makes buoyancy easy to understand.

Drawing accurate free-body diagrams is essential for scoring points on the AP® Physics Exams. In this video, Mr. P, an actual AP® Physics Reader, shows you exactly how to draw free-body diagrams the way exam graders want to see them....

In this physics lesson, we break down how the force of friction always opposes sliding motion, whether it’s static or kinetic friction. Through clear demonstrations, motion tracking, and connections to Newton’s Laws of Motion, you’ll see...

Struggling with forces and Newton’s Laws in AP® Physics 1? In this lesson, we clear up some of the most common stumbling blocks from roughly the first half of Unit 2, including center of mass, translational equilibrium, constant velocity...

Why is the electric potential energy of unlike charges negative? Why does it decrease as they get closer? In this Flipping Physics lesson, we graph electric potential energy vs. distance for a two-point charge system and use the shape of...

Struggling to understand electric potential energy in a system of three point charges? In this AP Physics 2 lesson, Mr. P and the Flipping Physics crew walk through a conceptual and mathematical breakdown of how to calculate and...

Electric potential is one of the most important ideas in electrostatics, and in this video, Mr. P from Flipping Physics clearly explains what electric potential is, how it differs from electric potential energy, and how to calculate it...

Watch two soda cans mysteriously move toward one another using nothing but air—and phys

Watch the continuity equation of ideal fluid flow in action using a real river example. A clear, visual explanation perfect for physics students.

Learn the key principles of electrostatic equilibrium in this clear and engaging physics lesson from Flipping Physics. Discover why the electric field inside a conductor is zero, how excess charges distribute themselves on the surface,...

Get ready to crush the AP Physics 1 exam with this complete 30-minute review of the entire course! This video covers every major topic from Units 1 through 8, including kinematics, dynamics, energy, momentum, rotation, harmonic motion,...

Dive deep into the concept of electric potential energy with Mr. P and the Flipping Physics crew! In this engaging physics lesson, we explore how electric potential energy compares to gravitational potential energy, using a thought...

Master the fundamentals of AP Physics 1 Unit 1: Kinematics with this clear, example-driven walkthrough of common stumbling blocks students face. We’ll break down how instantaneous velocity differs from average velocity, why “negative...

Learn how Bernoulli’s Principle helps create lift using a simple demo with a paper strip and hair dryer. Physics made clear, fun, and free with Mr. P!

Discover Torricelli’s Theorem, a fascinating result derived from Bernoulli’s Equation! Learn how to calculate the speed of fluid flowing out of a spigot in a large reservoir, why fluid density cancels out, and how this relates to the...