1.1. Distance: a numerical description of how far apart objects are or the length of a path that a moving object follows
1.2. Displacement: the shortest possible path between two points
1.3. Units: meters (m)
2. Speed vs. Velocity
2.1. Speed: the distance traveled by an object over a specific time interval
2.2. Velocity: the rate of change of a specific object in a given direction as it travels from point A to point B
2.3. Units: m/s
2.4. Speed = distance/time
2.5. Velocity = displacement/time
3. Acceleration
3.1. The rate at which an object changes its velocity
3.2. Speeding up = positive (v and a are in same direction)
3.3. Slowing down = negative (different sign for v and a)
3.4. Acceleration = change in velocity/change in time
3.5. Units: m/s/s
4. Position vs. Time Graphs
4.1. Time on x-axis, position on y-axis
4.2. Used to find instantaneous velocity
5. Kinematic Equations
5.1. v = v0 + at
5.2. v2 = v20 + 2a(xf - xi)
5.3. (xf - xi) = v0t + (1/2)at2
6. Free Fall
6.1. An object that is only being acted upon by gravity is in free fall. Free fall causes objects with small amounts of mass to increase velocity as gravity attracts them to objects with large amounts of mass.
6.2. Free falling objects increase in velocity by 9.8 m/s
6.3. Vf = gt can be used when initial velocity is 0 and there is no air resistance
6.4. d = 4.9(t)(t) since the distance that objects fall will increase based on the amount of time it falls
7. A branch of mechanics
8. The science of describing the motion of objects using words, diagrams, numbers, graphs, and equations
9. Velocity vs. Time Graphs
9.1. Time on x-axis, velocity on y-axis
9.2. Used to find instantaneous acceleration
10. Acceleration vs. Time Graphs
10.1. Time on x-axis, acceleration on y-axis
11. Gravity
11.1. Natural phenomenon by which all physical bodies attract each other. Gives weight to objects with mass such that the greater the mass the greater pull of gravity.
12. Projectile
12.1. Any object fired into the air with a path called a "trajectory"
12.2. Affected by gravity at a constant acceleration (free fall), and air resistance is negligible
12.3. Path will be a parabola
12.4. Broken into x and y direction
12.5. Acceleration in y-direction is 9.8 m/s which acceleration in x-direction is 0 m/s
