 How fast or slow something moves.  Ex: Ms. McKinley’s Dodge Neon drives 70 mph down the 110 Fwy.  UNIT: distance unit divided by a time unit (ex: m/s, mi/h, km/h)

 Velocity tells how fast something is going AND in what direction  Change in Velocity can be due to: Change in Speed Change in Direction Or Change in BOTH speed AND direction.  Example: Ms. McKinley’s Dodge Neon drives 70 mph NORTH on the 110 Fwy.

 Change in VELOCITY  Can happen in 3 ways: 1. Speeding up (+) 2. Slowing Down (-) 3. Changing Direction

 SPEED: change in POSITION over time  VELOCITY: change in POSITION over time, including DIRECTION  ACCELERATION: change in VELOCITY

1. A 2. B 3. C 4. D Acceleration is the rate of change of ____. Avelocity Bspeed Ctime Ddirection 1.2 Speed, Velocity, and Acceleration

1. A 2. B 3. C 4. D A car stopping at a red light is and example of a(n) ____. Adisplacement Bacceleration Cdirection Dvelocity 1.2 Speed, Velocity, and Acceleration

1. A 2. B 3. C 4. D It takes a runner 42.1 s to run a distance of 150 m. What is the runner’s average speed? A0.28 m/s B3.56 m/s C1.75 m/s D6.31 m/s 1.2 Speed, Velocity, and Acceleration