1. Motion Measuring Motion

2. Observing Motion Motion~when an object changes position over time when compared to a reference point Reference point~an object that appears to stay in place in relation to an object being observed for motion

3. Speed Depends on Distance and Time Speed~ the rate at which an object moves SI unit for speed~ meters per second (m/s) Average speed= total distance divided by total time Graph~ distance vs. time=speed –Straight line indicates constant speed

4. Velocity Velocity~ the speed of an object in a particular direction Velocity changes as speed or direction changes Combining velocities (Resultant velocity) –In same direction, add together –In different direction, subtract

5. Resultant Velocity

6. Acceleration The rate at which velocity changes Not just how much velocity changes, but how fast it changes Examples: text page 113 Circular motion~ an object traveling in a circular motion is always changing direction Centripetal acceleration~ acceleration that occurs in a circular motion Acceleration= Final velocity – starting velocity Time it takes to change velocity

7. Acceleration Graph Your Subtopics Go Here

8. Centripetal Acceleration Object traveling in a circular motion is always changing direction –Velocity always changing –Acceleration occurs

9. elements www.animationfactory.com