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update seis activity

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Michael Elliot Braun 2016-05-10 11:56:41 -07:00
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docs/lessons/seismograph/activity.md
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@ -91,31 +91,31 @@ First, notice that moving the micro:bit in the simulator in any direction, you w
![](/static/mb/lessons/seismograph3.png)
* Click or tap the compile button for the seismograph program to run the program on the micro:bit.
![](/static/mb/lessons/seismograph4.png)
## 3.
The flat, black colored line should appear directly beneath the colored line. The block line measures the micro:bit acceleration.
Run the acceleration experiment by moving the actual micro:bit and observe the changes in the black line.
![](/static/mb/lessons/seismograph5.png)
First, notice that moving the micro:bit in any direction, you will change the acceleration value, which is being displayed as the same color as the micro:bit. By moving the micro:bit, there is a changing acceleration value.
![](/static/mb/lessons/seismograph7.png)
Second, the flat colored horizontal line will start moving to plot the value of the strength as measured in milli-gravities. The horizontal line's movement is based on the micro:bit.
Second, the flat colored horizontal line will start moving to plot the value of the strength as measured in milli-gravities. The horizontal line's movement is based on the micro:bit acceleration in Magnitude or Strength.
![](/static/mb/lessons/seismograph6.png)
## 4.
* Click or tap the compile button for the seismograph program to run the program on the micro:bit.
![](/static/mb/lessons/seismograph4.png)
![](/static/mb/lessons/seismograph6.png)
![](/static/mb/analyze1.png)
Run the acceleration experiment by moving the actual micro:bit and observe the changes in the black line.
Vigorously move the micro:bit in the micro:bit simulatator by moving the micro:bit image from side to side. Every time the micro:bit moves in any direction in the simulator, you are generating data points that can be reviewed in Excel. The more attempts to move the micro:bit from side to side, the more data being saved in Excel. After you have vigarously moved the micro:bit simulator from side to side for a sufficient amount of time, you are ready to graph or chart the accceleration of the micro:bit. We want a printout of our acceleration on Excel that can be graphed in Excel.
First, notice that by moving the actual micro:bit in any direction, you will change the values of the black, flat horizontal line. The black line will change from being flat to being a waving black line. The changing values of the micro:bit accelereration is being measured in milli-gravities. Next, notice that by moving the micro:bit below, there is a changing acceleration value. Finally, notice that the LED display will fluctate based on the movement of the micro:bit.