1.  Motion  Change in position during a time period  3 types of motion –Speed –Velocity –Acceleration

2.  Speed  1. Definition: Rate at which an object moves  2. Formula: Distance divided by time (d/t)  3. Units: m/s or km/s

3.  Speed  4. Constant speed - speed that doesn’t change  5. Average speed- add speeds, divide by total number

4.  Velocity  1. Definition: Describes speed plus direction (n, s, e, w)  2. Formula: D/T plus direction  3. Units: m/s or km/s, north, south, east or west

5.  Velocity  4. Velocities can be combined –Add velocities when in same direction –Velocities in opposite direction= subtract

6.  Accelerati on  1. Definition: Rate of change in velocity –Speeding up, slowing down, changing direction  2. Formula: Final velocity minus original velocity, divided by time  3. Units: m/s/s or km/s/s

7.  Accelerati on  4. Increasing velocity - positive acceleration  5. Decreasing velocity - negative acceleration- deceleration

8.  Momentu m  1. Definition: Depends on object’s mass and velocity –Related to force upon impact  2. Formula: Mass x velocity  3. Units: Kg.m/s