Professor Dave Explains
Practice Problem: Box Sliding Down a Ramp
Lisa, are you serious? Alright, just one more favor. This one is a little trickier than the previous, because there is some trigonometry involved, beyond the kinematics and friction from the previous problems. What will become of your...
Flipping Physics
Introductory Newton's 2nd Law Example Problem and Demonstration
This video could also be called "Finding the Force of Friction between a Dynamics Cart and Track” because we use Newton’s Second Law to analyze a demonstration and show how negligible the force of friction really is.
Professor Dave Explains
Practice Problem: Two-Dimensional Two-Body Problem
You're really getting good at building physics toys in your garage! Check this awesome pulley system. You put your physics knowledge to the test and try to make a prediction about what will happen when you let these two blocks go. Will...
Flipping Physics
Letting Go Of Your Numbers Dependency
I teach physics. Trust me when I say that you need to learn to let go of your numbers dependency. In this video, I show why.
Flipping Physics
What is Terminal Velocity? How Do We Find It?
The acceleration and terminal velocity of a dropped object are determined. The motion graphs of dropped coffee filters are demonstrated. Terminal velocity of a baseball is determined. Numerical Modeling is previewed. Want Lecture Notes?...
Flipping Physics
Angular Momentum and a Pulley Mass System
Angular momentum is used to determine the acceleration of a pulley mass system. two alternate solutions are shown, and the acceleration is demonstrated. This is an AP Physics C: Mechanics topic.
Content Times:
0:00 The Problem
1:50...
Virtually Passed
Equivalent Force Couple System example
To find the Equivalent force couple system first find the net force in all 3 directions (x,y and z). Then find the net moment at the point of interest about all 3 axis (x, y and z). Notice to determine what direction is positive about...
Flipping Physics
Impulse Introduction or If You Don't Bend Your Knees When Stepping off a Wall
Now mr.p doesn’t bend his knees when stepping off a wall. What is the new force of impact?
Professor Dave Explains
Practice Problem: Pushing Boxes
Your friend Lisa needs some help moving, but how long will it take? You're so hungry! Just do a little work with kinematics and Newton's laws, and then it'll be time for tacos.
Flipping Physics
5 Steps to Solve any Free Body Diagram Problem
Learn how to solve problems that have Free Body Diagrams!
Professor Dave Explains
Practice Problem: One-Dimensional Two-Body Problem
Lisa is moving again already! I dunno, I think there were bedbugs. This time you have a different plan, but you will still need kinematics and Newton's laws to find out how much time and effort stand between you and more snacks. Give it...
Flipping Physics
LR Circuits - Review for AP Physics C: Electricity and Magnetism
AP Physics C: Electricity and Magnetism review LR circuits including the basics of how an LR circuit works, the limits, derivations of current as a function of time and time rate of change of current as a function of time, graphs of both...
Flipping Physics
Which Direction will the Wheel Accelerate?
A rope is wrapped around a bicycle wheel. The wheel is released from rest and allowed to descend without slipping as the rope unwinds from the wheel. While descending, does the center of the wheel move straight down, toward the left, or...
Professor Dave Explains
Practice Problem: Launching Things With Springs
You're a mischievous little physicist, aren't you? Well I guess there's no harm in projecting a toy into the air, especially if it's part of your scientific research. Given a spring constant and some other information, how high will this...
Professor Dave Explains
Practice Problem: Inelastic Collisions at the Skating Rink
If you're strange enough to hits cats with pendulums, you're strange enough to throw frisbees at the skating rink. As you do this, you realize it's a great time to practice your physics, since you know about inelastic collisions. How...
Professor Dave Explains
Practice Problem: The Mini-Golf Windmill
Who doesn't love mini-golf? Especially when you've got money riding on it, and especially when you've got some physics knowledge up your sleeve. Go ahead and impress your friends by getting through the windmill obstacle, thanks to a...
FuseSchool
Newton's First Law
Newton's First Law | Force & Motion | Physics | FuseSchool In Physics we have three fundamental Laws of Motion created by Sir Isaac Newton way back in the 17th century. Today we are looking at the first law of motion, sometimes called...
Flipping Physics
A Three Force Example of Newton's 2nd Law with Components
Finding the net force caused by three brothers fighting over a stuffed turtle. We break one vector in to components and find the components of the net force in order to solve for the net force.
Flipping Physics
2 Masses on a Pulley - Torque Demonstration
0.100 kg and 0.200 kg masses hang from either side of a frictionless #Pulley with a rotational inertia of 0.0137 kg·m^2 and radius of 0.0385 m. (a) What is the #AngularAcceleration of the pulley? (b) What is the #TensionForce in each...
Flipping Physics
An Introductory Tension Force Problem
Learn how to solve a basic tension force problem with demonstration!
Flipping Physics
A Brief Look at the Force of Drag using Numerical Modeling (or The Euler Method)
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...
Flipping Physics
Effects of Drag Force on Free Fall
The proportionality constant drag force equation is introduced. The acceleration of the ball for its entire path is discussed. Terminal velocity is derived. The time going up vs. time going down is determined and demonstrated. The...
Flipping Physics
Determining the Speed of the Electron in the Bohr Model of the Hydrogen Atom
Assuming a circular orbit of the electron about the nuclear proton in the Bohr model of the hydrogen atom, determine the speed of the electron.
Flipping Physics
AP Physics 1: Rotational Kinematics Review
Review of the Rotational Kinematics topics covered in the AP Physics 1 curriculum.