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

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Presentation transcript:

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

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

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

 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

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

 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

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

 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