Chapter 2: Force
by emily rossini
1. Newton's Laws
1.1. 1st Law
1.1.1. Law of Inertia
1.2. 2nd Law
1.2.1. Force vector = mass scalar x acceleration vector
1.3. 3rd Law
1.3.1. Interaction Pairs
1.3.1.1. Equal and Opposite Reactions
1.3.1.2. same magnitude, in different directions
1.4. 4th Law
1.4.1. Law of Universal Gravitation
2. Net Force
2.1. the vector sum of all forces acting on an object
3. Free-Body Diagrams
4. Equilibrium
4.1. Translational Equilibrium
4.1.1. net force on an object is zero
4.2. balance of forces
5. External Force
6. Diagrams
6.1. Step
6.2. Polar
7. Vectors
7.1. Magnitude
7.2. Direction
8. F = ma
9. a push or pull
10. Types of Forces
10.1. Contact Force
10.1.1. exist only when two objects are touching
10.1.2. Normal Force
10.1.2.1. perpendicular to contact surfaces
10.1.3. Friction
10.1.3.1. parallel to contact surfaces
10.2. Long-Range Force
10.2.1. does not require touching
10.2.2. Gravitational Force
10.2.2.1. weak fundamental force