Khan Academy
Khan Academy: Visual Understanding of Centripetal Acceleration Formula
This video gives a visual understanding of how centripetal acceleration relates to velocity and radius. [9:47]
Khan Academy
Khan Academy: Race Cars With Constant Speed Around Curve
Using a racetrack as an example, this video demonstrates when acceleration could involve a change in direction and not speed.
Khan Academy
Khan Academy: Deriving Formula for Centripetal Acceleration From Angular Velocity
Sal Khan explains how to derive the formula for centripetal acceleration in terms of angular velocity using linear speed formula. [5:29]
Khan Academy
Khan Academy: Acceleration of Aircraft Carrier Take Off
In this video,you will find out how to determine acceleration by knowing the runway length and take-off velocity. Video includes step-by-step process to solve this problem. [14:15]
Khan Academy
Khan Academy: Relating Angular and Regular Motion Variables
In this video David shows how to relate the angular displacement to the arc length, angular velocity to the speed, and angular acceleration to the tangential acceleration. [14:36]
Khan Academy
Khan Academy: Finding an in Between Frame of Reference
Let's use Einstein velocity addition to find a frame of reference where A and B are traveling in opposite directions at the same speed. [8:11]
Khan Academy
Khan Academy: Radius Comparison From Velocity and Angular Velocity: Example
Watch as Sal Khan predicts which spinning disc has a larger radius from angular velocity and the linear velocity of a point on the edge. [3:58]
Khan Academy
Khan Academy: Linear Velocity Comparison From Radius & Angular Velocity: Example
Sal Khan explains linear velocity from the radius and angular velocity using two pumpkin catapults with different arm lengths as an example. [5:30]
Khan Academy
Khan Academy: Optimal Angle for Projectile Part 3: Horiz Dist, Funct of Angle
In this video, Sal Khan will finish writing the formula for distance as a function of the angle. [2:38]
Khan Academy
Khan Academy: Optimal Angle for Projectile Part 1: Components of Initial Velocity
You want a projectile to fly as far as possible, at which angle should you launch it? We'll start with formulas for the initial velocity. [5:49]
Khan Academy
Khan Academy: Force vs. Time Graphs
Investigate how to use force vs. time graph to find the change in momentum in this video. See how to solve an example problem to find the final velocity of a spaceship. [8:13]
Khan Academy
Khan Academy: Introduction to Momentum
A video exploring momentum and how it is beyond its equation of mass times velocity. [9:18]
Khan Academy
Khan Academy: Airbus A380 Take Off Distance
This video solves the problem of how long of a runway an A380 needs. [5:29]
Khan Academy
Khan Academy: Airbus A380 Take Off Time
Sal Khan figures out how long it takes an A380 to take off given a constant acceleration. [8:08]
Khan Academy
Khan Academy: Deriving the Shortcut to Solve Elastic Collision Problems
In this video, David derives the expression that we can use as a shortcut to solve for finding the velocities in an elastic collision problem. [12:21]
PBS
Pbs Teachers:hockey
Examine different types of hockey sticks while watching kids use the scientific method to learn how a hockey stick's flex affects shooting power and accuracy.
Sophia Learning
Sophia: Defining Momentum Mathematically: Lesson 1
This lesson provides a mathematical relationship for momentum. It is 1 of 2 in the series titled "Defining Momentum Mathematically."
Sophia Learning
Sophia: Determining Position Under Constant Acceleration: Lesson 2
This lesson explains how to find the position of an object that is undergoing constant acceleration. It is 2 of 2 in the series titled "Determining Position Under Constant Acceleration."
Sophia Learning
Sophia: Determining Position W/ G: Lesson 1
This lesson demonstrates how to find the position of an object undergoing free fall. It is 1 of 2 in the series titled "Determining Position w/ g."
Sophia Learning
Sophia: Determining Velocity Under Constant Acceleration: Lesson 2
This lesson explains how to find the velocity of an object if it is undergoing constant acceleration. It is 2 of 2 in the series titled "Determining Velocity Under Constant Acceleration."
Sophia Learning
Sophia: Determining Velocity Under Constant Acceleration: Lesson 1
This lesson explains how to find the velocity of an object if it is undergoing constant acceleration. It is 1 of 2 in the series titled "Determining Velocity Under Constant Acceleration."
Sophia Learning
Sophia: Determining Velocity W/ G
This lesson demonstrates how to find the velocity of an object undergoing free fall.
Sophia Learning
Sophia: Determining Velocity With G
This lesson demonstrates how to find the velocity of an object undergoing free fall.
Sophia Learning
Sophia: Introduction to Speed and Velocity: Lesson 2
This lesson introduces the concepts of speed and velocity and explains what the similarities and differences between them are. It is 2 of 2 in the series titled "Introduction to Speed and Velocity."