Chapter 2-Force
by Rebecca Harman

1. Vectors
1.1. Polar Vector
1.2. Step Vector
1.3. Magnitude + Direction
1.4. Velocity
2. Newton's Laws of Motion
2.1. Newton's 1st law
2.1.1. Inertia
2.2. Newton's 2nd law
2.2.1. Acceleration
2.3. Newtons 3rd Law
2.3.1. Interaction: Same magnitude, opposite direction
3. Gravitational Force
3.1. Function of position
3.2. Magnitude-Size of Force
4. Measurement
4.1. Newton
4.1.1. 4.448N=1lb
5. Net Force
5.1. Equilibrium
5.1.1. Balance; Net force=0
5.2. Free Body Diagram
5.2.1. Every force acting on ONE object
5.3. Sum of Forces on an object
6. Internal Force
6.1. Both objects are part of the system
7. External Force
7.1. One of the 2 objects is exerted
8. Contact Force
8.1. Normal Force
8.1.1. Perpendicular Contact force
8.2. Friction Force
8.2.1. Parallel Contact Force
8.2.2. Static
9. Tension
9.1. Magnitude of Force
9.2. Tensional Force
10. Fundamental Forces
10.1. Weak
10.1.1. Weak interaction, shortest force
10.2. Strong
10.2.1. Strongess force, short range
10.3. Gravity
10.3.1. Weakest force, unlimited range
10.4. Electromagnetic
10.4.1. Acts on electric charge, unlimited range