Motion II. Accelerated Motion Finger tool Position Time Position and Time Speed Speed and Time How would you describe the motion of the cart?

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Presentation transcript:

Motion II

Accelerated Motion Finger tool Position Time Position and Time Speed Speed and Time How would you describe the motion of the cart?

Connect your calculator to the CBR with the 1/8” stereo jack cable: Press [APPS] on the calculator and scroll down to choose CBL/CBR. At the main menu, choose Ranger. Then choose SETUP/SAMPLE. Use the arrow keys ◄►▲▼ and [ENTER] to change the options as below. You may use either meters or feet for the units. MAIN MENU START NOW REALTIME:YES TIME (S):15 DISPLAY:DIST BEGIN ON:[ENTER] SMOOTHING:NONE UNITS:METERS Cursor up to “START NOW” and press [ENTER], then press [ENTER] again when prompted to begin the data collection.

Collect your own data: Start your cart At the top of the ramp or at the bottom Moving fast or moving slow Place the detector At the top of the ramp or at the bottom It is best to have the detector about ½ meter away from the ramp since it does not detect close objects accurately.

Analyze your data in Fathom: A complete analysis of position vs. time (table, graph, formula with sliders, units) Compute the average velocity (V) between each data point A complete analysis of velocity vs. time (table, graph, formula with sliders, units) Compute the average acceleration (a) between each data point A complete analysis of acceleration vs. time (table, graph, formula with sliders, units)

Discussion What connections did you see in your three analyses: position, velocity, acceleration? Can you see these connections in other representations? What connections did you see across representations?