Khan Academy
Khan Academy: Performing Rotations (Old)
An older video where Sal uses the interactive widget to find the image of a line segment under a rotation.
Khan Academy
Khan Academy: Determining Rotations (Old)
An older video where Sal determines the rotation that takes one shape to another.
Khan Academy
Khan Academy: Rotating 2 D Shapes in 3 D
If you rotate a 2D shape about an axis, the shape will define a 3D object. Watch Sal rotating various 2D shapes and see what 3D objects he gets!
Khan Academy
Khan Academy: 1. How Do We Rotate Points?
First let's think about how to rotate some really simple points such as (0,0) and (1,0) Click here to review basic trig ratios.
Khan Academy
Khan Academy: Electric Motors (Part 1)
Sal Khan shows that there will be a net torque on a loop of current in a wire in this video. He also shows that this net torque will cause the loop to rotate. [10:35]
Khan Academy
Khan Academy: Performing Rotations
Demonstrates how to use an interactive tool to rotate a pentagon on a Cartesian grid. [1:25]
Sophia Learning
Sophia: Rotating on a Coordinate Plane: Lesson 5
This lesson demonstrates how an object can be rotated in space and on a coordinate plane about different points. It is 5 of 5 in the series titled "Rotating On a Coordinate Plane."
Sophia Learning
Sophia: Secant Lines: Lesson 2
This lesson introduces the concept of secant lines. It is 2 of 5 in the series titled "Secant Lines."
Sophia Learning
Sophia: Secant Lines: Lesson 1
This lesson introduces the concept of secant lines. It is 1 of 5 in the series titled "Secant Lines."
University of Nebraska
University of Nebraska: Football Physics
Physics video lecture (1:16:39) that uses football to illustrate physics principles.