pxt-calliope/docs/lessons/glowing-pendulum/quiz.md

# glowing pendulum quiz

construct a pendulum that glows using acceleration #LED #number #math #acceleration #docs

## Name

## Directions

Use this activity document to guide your work in the [glowing pendulum tutorial](/microbit/lessons/glowing-pendulum/activity)

Answer the questions while completing the tutorial. Pay attention to the dialogues!

## 1. Why are you creating a 'forever' loop?

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## 2. Write the line of code to measure the acceleration with respect to the "y" axis and store this value in a local variable called 'acceleration'.

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## 3. After storing the acceleration in a variable, write the code to take the absolute value of the acceleration, and store this value inside 'acceleration'.

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## 4. Write the code that uses the acceleration value from question #3 to set the brightness on the BBC micro:bit.

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## 5. Write the code that tuns all the LEDs on (as the image displays below)

![](/static/mb/lessons/glowing-pendulum-1.png)

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