We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that the acceleration rate is itself constant, which will surely result in...

In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration. Also,...

In this video Paul Andersen explains how Newton's Second Law applies when a net force acts on a body. The net force vector and the acceleration vector will act in the same direction. If an object acts on another object in a system the...

In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration. Also,...

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...

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...

This content outlines a strategy to solve a physics problem involving two cars moving towards each other, where one car has constant velocity and the other has constant acceleration. It explains how to determine the initial velocity and...

This content outlines a two-phase approach to analyze the motion of a car that first accelerates from rest and then decelerates to a stop. It details how to calculate the time taken and distance covered in each phase, using kinematic...

Master motion under constant acceleration with clear derivations of the kinematic equations (v = v₀ + at, s = v₀t + ½at², etc.). Learn how to apply them to solve motion problems with intuitive visual aids and examples.

This section of Kinematics AP Physics review, we focus on motion graphs in physics. We explore how the slope of a position versus time graph represents velocity, while the slope of a velocity versus time graph represents acceleration....

Welcome to our AP Physics 1 review session where we tackle three exciting Newton's Second Law multiple-choice problems! Join us as we dive into the world of forces, acceleration, and equilibrium to help you prepare for the upcoming exam....

This lesson builds on what we learned about position as a function of time graphs. We start with velocity as a function of time graphs, determine what the motion would look like and then draw position and acceleration as a function of...

Again with the graphs? Yes. Absolutely Yes. Graphs are such an important part of any science, especially physics. The more you work with graphs, the more you will understand them. Here we combine graphs and uniformly accelerated...

Speed, Distance, Time and Acceleration



Speed and acceleration are Physics concepts that we encounter every day, and an understanding of these concepts is crucial to most areas o


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This is how you include air resistance in projectile motion. It requires the Drag Force and Numerical Modeling (or the Euler Method). It is also very helpful to use a spreadsheet to do the calculations. I prove a statement from a...

This video covers a very challenging rectilinear motion problem. Every problem you're going to face (excluding circular motion) will only require you using two formulas; dx/dt = V and dV/dt = a. All other formulas can be derived from...

This video continues what we learned about UAM in our previous lesson. We work through a introductory problem involving a bicycle on which we have applied the brakes.

What are the formulas of predictor equations? What do each equation mean?<br/>
Equations Of Motion In One Dimension, Part 1

Alternate Uniformly Accelerated Motion (UAM) equations are introduced. The derivative is used to derive one UAM equations from another UAM equation.

This video starts with a simple acceleration problem and then addresses a commonly held misconception that a negative acceleration always means you are slowing down. I do this by way of examples. Kate (my wife) drove the Prius with a...

This video is a lecture presentation on velocity time graphs. The presenter shows a graph with velocity on the Y-axis and time on the X-axis and explains the key characteristics of the graph, including constant acceleration and...

Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: PROBLEM 1 A girl is riding her bike with a constant velocity of 10 m/s. How...

You can put energy into an object. Wanna know how? No, you don't need a Harry Potter wand. Just lift it up above your head! By doing so, you bestow the object with more potential energy. Learn more about the energy of motion and the...