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move lessons out of web site

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will move select lessons back to "educators" section
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Tom Ball
2016-06-14 11:49:58 -04:00
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docs/lessons/glowing-pendulum/challenges.md
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# glowing pendulum blocks challenges
Coding challenges for the glowing pendulum tutorial.
## Before we get started
Complete the following [glowing pendulum activity](/lessons/glowing-pendulum/activity) and your code should look like this:
```blocks
basic.forever(() => {
let acceleration = input.acceleration(Dimension.Y);
acceleration = Math.abs(acceleration);
acceleration = acceleration / 4;
led.setBrightness(acceleration)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
`)
});
```
### Challenge 1
![](/static/mb/lessons/glowing-pendulum-0.jpg)
Hold the micro:bit in your hand in a dark room. Move the micro:bit like a pendulum and produce a slow image that captures the pattern of the micro:bit LEDs.
### Challenge 2
Replace "y" in `acceleration(y)` with "x" or "z". Changing the axis will cause the micro:bit to measure the force in a different direction. What differences in the resulting pattern does this replacement make?