Instructional Video
Khan Academy

Khan Academy: Treating Systems (The Hard Way)

9th - 10th
This video explains how to find the acceleration of two masses hanging from a pulley (using the easy method). [15:26]
Instructional Video
Sophia Learning

Sophia: Dot: Lesson 2

9th - 10th
In this lesson, you will learn about the Dot element and how it is used in the visual design process. It is 2 of 3 in the series titled "Dot."
Instructional Video
Sophia Learning

Sophia: Introduction to Tension: Lesson 2

9th - 10th
This lesson introduces the concept of tension. It is 2 of 2 in the series titled "Introduction to Tension."
Instructional Video
Sophia Learning

Sophia: Practice W/ Tension Forces: Lesson 1

9th - 10th
This lesson provides the learner with example problems involving tension forces. It is 1 of 2 in the series titled "Practice w/ Tension Forces."
Instructional Video
Sophia Learning

Sophia: Tension Forces & Friction: Lesson 1

9th - 10th
This lesson demonstrates how tension forces can be used to determine the friction force acting on an object. It is 1 of 2 in the series titled "Tension Forces & Friction."
Instructional Video
Sophia Learning

Sophia: Tension Forces & Weight: Lesson 2

9th - 10th
This lesson demonstrates how tension forces can be used to determine the weight of an object. It is 2 of 2 in the series titled "Tension Forces & Weight."
Instructional Video
Sophia Learning

Sophia: Tension Forces & Weight: Lesson 1

9th - 10th
This lesson demonstrates how tension forces can be used to determine the weight of an object. It is 1 of 2 in the series titled "Tension Forces & Weight."
Instructional Video
Sophia Learning

Sophia: Tension & Newton's Third Law of Motion

9th - 10th
This lesson explains how tension forces are related to Newton's third law of motion.
Instructional Video
Sophia Learning

Sophia: Practice W/ Tension Forces: Lesson 2

9th - 10th
This lesson provides the learner with example problems involving tension forces. It is 2 of 2 in the series titled "Practice w/ Tension Forces."