## Force and Motion 1 - Newton's Laws

- Force and interaction
- Lecture (21:36)
*Concept of a force leading to the acceleration of an object, a Newton as the unit of force, examples of forces, and the superposition of forces when more than on acts on a body*

- Newton's first law
- Lecture (11:08)
*Description of Newton's First Law of Motion, concept of inertia, inertial reference frames, and definition and units of mass*

- Newton's second law
- Lecture (9:00)
*Description of Newton's Second Law of Motion as a quantitative relationship between force and acceleration*

- Lecture (14:28)
*Demonstration of Newton's Second Law through the acceleration of a cart attached to a falling mass*

- Mass and Weight
- Lecture (11:55)
*Conceptual difference between mass (inertia) and weight (a force)*

- Newton's third law
- Lecture (11:17)
*Description of Newton's Third Law of Motion*

- Free-body diagrams
- Lecture (8:54)
*The useful technique of drawing all force vectors acting on an object*