Bozeman Science
Free Body Diagrams
Mr. Andersen shows you how to draw free body diagrams of various objects. The major forces (like gravity, normal, tension, friction, air resistance, etc.) are discussed and then applied to various problems.
Bozeman Science
Free-Body Diagrams
In this video Paul Andersen explains how free-body diagrams can be used to solve kinematics problems. The only two parts of a free-body diagram are the object and all external forces acting on the object. Numerous situations are...
Crash Course
Friction: Crash Course Physics
Why is it hard to move a heavy bookcase across a carpeted floor? And why is it easier to keep it moving than it was to get it started moving? You might think it's all about weight, but actually it's about friction. Two kinds of friction!...
Bozeman Science
Newton's Third Law
In this video Paul Andersen explains how Newton's Third Law applies to all objects. When an object applies a force to another object (Action) and equal and opposite force (Reaction) is applied to the original object. Several scenarios...
Bozeman Science
Forces
Forces are pushes or pulls on an object. Forces can be determined by measuring the motion of an object. If an object accelerates then a force is present.
Bozeman Science
Contact Forces
In this video Paul Andersen explains how contact forces result from interatomic forces. The following forces are explained at the interatomic level: normal force, applied force, friction force, tension force, spring force, and buoyant...
Crash Course
Newton's Laws: Crash Course Physics
I'm sure you've heard of Isaac Newton and maybe of some of his laws. Like, that thing about "equal and opposite reactions" and such. But what do his laws mean? And how do they help us understand the world around us? In this episode of...
Schooling Online
Physics - Module 2 - Introduction to Statics and Dynamics: Static Friction
Vector Man enrols into Ian’s superhero training programme! This lesson will explain how static friction is dependent on the applied force, normal force and roughness of a surface, but independent of apparent contact area. Definitions...
Schooling Online
Physics - Module 2 - Introduction to Statics and Dynamics: Real and Fictitious Forces
Forces are like friends… some are real and some are fake! This lesson will distinguish between real and fictitious forces.
Definitions included: frame of reference, inertial frame of reference, non-inertial frame of reference, real...
Schooling Online
Physics - Module 2 - Introduction to Statics and Dynamics: Dynamic Friction
Lotus isn’t the only one who has noticed that Ian is up to something… This lesson will explain how dynamic friction is dependent on the normal force and roughness of a surface, but independent of speed and apparent contact area....
Flipping Physics
Mechanics #3 Free Response Question Solutions - AP Physics C 1998 Released Exam
This Free Response Question includes the following concepts: Free Body Diagrams (or Force Diagrams), Static and Kinetic Friction, Tension, Force Normal, Force of Gravity, Newton's Second Law (many times), a Multiple Bock System and a...
Physics Girl
Friction - Physics 101 / AP Physics 1 Review with Dianna Cowern
Lesson 6 (Friction) of Dianna's Intro Physics Class on Physics Girl. 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: Problem1:...
Physics Girl
Rotation and Torque - Physics 101 / AP Physics 1 Review with Dianna Cowern
Lesson 14 (Rotation and Torque) of Dianna's Intro Physics Class on Physics Girl. 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...
Virtually Passed
challenging friction problem
This problem is from the Meriam and Kraige Statics textbook. I do not own this problem and I am not using it for commercial purposes. In this problem you need to always start with a free body diagram. Notice that in order to find the...
Flipping Physics
Painter on a Scaffold - Don't Fall Off!!
What is the closest to the end of a 93 g uniform meterstick you can place a 200.0 g object and have the system stay balanced? The meterstick is supported at the 20.0 cm and 80.0 cm marks.
Physics Girl
Circular Motion - Physics 101 / AP Physics 1 Review with Dianna Cowern
Lesson 7 (Circular Motion) of Dianna's Intro Physics Class on Physics Girl. 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:...
Virtually Passed
Work Energy proof part 4
In this video I generalize the formula derived from the previous 3 videos, define Mechanical Energy and talk briefly about conservative and non conservative forces. Note mechanical energy is conserved if no forces (other than gravity and...
Virtually Passed
Static Friction Example 1
The maximum friction force that can be a applied on a stationary object is F_max = u_s N
Virtually Passed
Simple dynamics problem using energy methods
Here we solve for the velocity of a block as it's sliding up a circular hill using energy methods 1) Find work done by external forces (it's 0). 2) Notice there is negligible rotation so the kinetic energy is just 0.5 m (v2^2 - v1^2). 3)...
Virtually Passed
circular motion problem 1
A simple problem using the equation derived in my previous video: at = r alpha and an = v^2/r