Motion Investigate the relationships among speed, position, time, velocity, and acceleration.

Distance Frame of reference Relative motion Distance System of objects that are not moving with respect to each other Relative motion Movement in relation to a frame of reference Distance Length between two points

Displacement Displacement Vector Adding vectors Resultant vector The direction and length 3 meters west of the door Vector Magnitude and direction 8 feet left Adding vectors If on the same line, just add or subtract the magnitudes Resultant vector If in various directions, the vector is the displacement from beginning to end

Speed Distance an object moves compared to the time it takes to move SI unit meters per second m/s Average speed The total distance divided by total time Instantaneous speed, n The speed at that specific moment in time

Graphing Motion Distance on the y-axis Time on the x-axis Slope is the speed Horizontal lines mean object has stopped

Velocity Speed and direction Combining velocities 80 mph east Add by vector addiction

Acceleration Change in speed, direction, or both http://www.physicsclassroom.com/mmedia/kinema/avd.cfm Change in speed, direction, or both Positive acceleration is speeding up Negative acceleration is slowing down Constant acceleration is a steady change in velocity Acceleration is change in velocity over time

Graphing Acceleration Velocity on y-axis Time on x-axis Slope is acceleration Horizontal line means no change in acceleration