Finding speed isn't always a matter of dividing distance by time! Learn the difference between average and instantaneous speed, and how to calculate both.

Equations are at the heart of physics! This lesson presents ways to write equations for scenarios in which forces like gravity and friction are in balance.

Ever wonder what it is that keeps satellites in orbit and the world spinning? This lesson explores circular motion, looking specifically at centripetal force.

Equations can be a bit boring, so FlippedPhysics uses basic geometry to illustrate the derivation of five equations of constant acceleration in this lesson.

Learn about the physics of falling with FlippedPhysics, who explains how air resistance, surface area, and gravity affect how objects (and people) fall.

FlippedPhysics explains the difference between static and kinetic friction, the equation for frictional force, and demonstrates how powerful friction can be!

Graphing can help make physics concepts easier to understand and track. With this lesson, see how to graph velocity, displacement, and acceleration.

FlippedPhysics walks you through the basics of inclines, starting with a simple diagram and graph to illustrate the forces moving a ball down a hill.

In this lesson, start thinking about how to use scalars and vectors in real-world scenarios involving speed, distance, time, velocity, and displacement.

Learn how to solve problems in two dimensions with vectors! Follow a simple example in this lesson to see how to break velocity down into its components.