Exploring Motion Motion Vocabulary A B C D

Exploring Motion

Motion Vocabulary A. B. C. D. Motion Speed Velocity Acceleration _ Tells us the rate at which an object moves _ Tells us the rate of speed or direction changes. _ Is a change in position measured by distance and time _ Tells the speed and direction of a moving object.

Distance-Time Graphs -Axis. • Distance is always plotted on Dista nce • Time is always plotted on the X the Y-Axis. Ti m

• What kind of graph will a nonmoving object make? • Have a student stand at the Dista nce Graphing Motion front of the classroom, have another time them for 5 seconds just standing there. • Graph the results. Ti m

At Rest Objects How far did the object travel over the time period? Time is increasing to the right, but its distance did not change. The object is not moving. The object is stopped or at rest.

• What kind of graph will an object moving at a constant speed look like? Dista nce Graphing Motion • Have a student walk slowly across the room, have another time them for 5 seconds • Graph the results. Ti m

Constant Speed • How far did the object travel over a period of time? • Time is increasing to the right • Distance is increasing constantly with time. • The object moves at constant speed.

• What kind of graph will an object moving at a quick but constant speed look like? Dista nce Graphing Fast Motion • Have a student walk quickly across the room, have another time them for 5 seconds • Graph the results. Ti m

Fast Constant Speed • How far did the object travel over a period of time? • Time is increasing to the right • Distance is increasing constantly with time. • A steeper line means more distance was covered in a given time. • The object moves at constant speed.

• What kind of graph will an object getting faster look like? • Have a student walk slowly for Dista nce Graphing Getting faster three seconds, and then quickly for two seconds across the room, have another time them for 5 seconds • Graph the results. Ti m

Getting Faster • How far did the object travel over a period of time? • Time is increasing to the right • Why is it not a straight line? • It is not Constant or steady increase • Shows an increase in speed because the line is getting more steep. • The object is accelerating.

Review • Which one is faster? • How do you know?

Review • What is always increasing to the right? • Time • What is speed? • Distance over time

Review What is always on the X-Axis? Time What is always on the Y-Axis? Distance

Review • What does this graph mean?

Challenge! • What does this graph mean?