# 6-4 Speed & Velocity

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Information about 6-4 Speed & Velocity

Published on December 4, 2009

Author: rkelch

Source: slideshare.net

Warm Up Sam walks 10 meters down the hall. Then turns right and walks 25 meters to get to the cafeteria. What is Sam’s distance traveled and displacement?

Warm Up Will an airplane have a greater velocity flying into the wind or in the same direction as the wind. The wind will add to the velocity of the airplane. Velocities add in the same direction. Velocities subtract when opposite directions

6-4 Graphing MotionSpeed & Velocity Compare and Contrast average speed with instantaneous speed. Interpret distance-time graphs.

Average Speed vs. Instantaneous speed Average speed- how fast something travels over the entire trip. Instantaneous speed- how fast something travel at a particular instant. Velocity – speed with direction

d vs. t graphs Graph the motion use the slope to interpret the relationship between the variables (d & t) *steep slope  Fast speed *gentle slope  Slow speed

d d d d t t t t When interpreting the motion answer: As time goes by, distance (d  or ) The line shows relationship (constant or changing) Moving forward (d) No motion (d stays same) Moving backward (d) Moving forward (d) Constant speed (straight) Changing speed (curved) Constant speed (straight) Constant speed (straight) 0 m/s

As time goes by, distance (d  or )

The line shows relationship (constant or changing)

Moving forward (d)

No motion (d stays same)

Moving backward (d)

Moving forward (d)

Constant speed (straight)

Changing speed (curved)

Constant speed (straight)

Constant speed (straight)

0 m/s

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